Prelims GS Paper I 2012

Answer: (c) 1, 3 and 4 only

Statements 1, 3 and 4 are correct. The Sushruta Samhita (c. 100 CE) describes a large set of specialised surgical instruments. Aryabhata's Aryabhatiya (499 CE) contains the first mention of the sine function. Brahmagupta's 7th-century work gave the formula for the area of a cyclic quadrilateral. There is no evidence of internal-organ transplants in ancient India. Sushruta's celebrated operations were reconstructive, such as rhinoplasty and otoplasty.

• ✓ 1. The Sushruta Samhita, a Sanskrit work on medicine dated c. 100 CE, describes more than 300 kinds of operations and 121 different types of surgical instruments.
• ✗ 2. Sushruta is credited with reconstructive procedures on the nose and ear (rhinoplasty and otoplasty). There is no evidence of internal-organ transplants in ancient India.
• ✓ 3. The first mention of the sine function (ardha-jya, 'half chord') is in Aryabhata's Aryabhatiya of 499 CE, which falls in the 5th century.
• ✓ 4. Brahmagupta's Brahmasphutasiddhanta was composed in 628 CE, in the 7th century. He gave the formula for the area of a cyclic quadrilateral, now known as Brahmagupta's formula.

Remember · Sushruta (c. 100 CE) = surgery, many instruments and plastic surgery, but no organ transplants. Aryabhata (499 CE) = sine. Brahmagupta (628 CE) = cyclic quadrilateral.

📘 Read it in NCERT: Class 11 Knowledge Traditions and Practices of India, Part I, Ch 5 (practise this chapter) · Class 11 Knowledge Traditions and Practices of India, Part I, Ch 7 (practise this chapter) · Class 12 Themes in Indian History, Part I, Ch 3 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 2 and 3 only

Shrenis largely governed themselves: they set work rules, standards and prices and judged disputes among members. They were not registered with a central authority.

• ✗ 1. Guilds were self-governing bodies; no central registration is recorded.
• ✓ 2. Guilds regulated production, quality and prices.
• ✓ 3. Guilds settled disputes of their own members under their own rules.

Remember · Shrenis: self-governing craft and merchant bodies with their own rules and courts.

📘 Read it in NCERT: Class 12 Themes in Indian History, Part I, Ch 2 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 24 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) Worship of nature and yajnas

Early Vedic people prayed to natural forces such as Agni, Indra and Soma through hymns and sacrifices (yajnas). Image worship and bhakti came later.

• ✓ (c) Rigvedic hymns praise deities of nature and were chanted at sacrifices.
• ✗ (b) Temple images are a post-Vedic development.

Remember · Early Vedic religion: nature deities and yajnas.

📘 Read it in NCERT: Class 12 Themes in Indian History, Part I, Ch 4 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 24 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2 and 3

Sufis practised zikr with breath control and meditation, took to asceticism, and used sama' (mystical music) to evoke ecstasy, so all three are correct.

• ✓ 1. Zikr involved counting breaths and meditation.
• ✓ 2. Many Sufis turned to asceticism and mysticism.
• ✓ 3. Qawwali and sama' were used to evoke divine ecstasy.

Remember · Sufi practices: zikr with breath control, asceticism, sama' for ecstasy.

📘 Read it in NCERT: Class 12 Themes in Indian History, Part II, Ch 2 (practise this chapter) · Class 12 Themes in Indian History, Part II, Ch 2 (practise this chapter) · Class 12 Themes in Indian History, Part II, Ch 2 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 24 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) Indian National Congress did not want to include social reforms in its deliberations and decided to form a separate body for such a purpose.

In its early years the Indian National Congress confined itself to all-India political questions and kept social reform out of its deliberations. Reformers led by M.G. Ranade therefore set up a separate body in 1887, the National Social Conference, to take up social reform.

• ✗ (a) The Conference was not a merger of Bengal reform groups. It was founded in 1887 by M.G. Ranade of the Bombay Presidency, and it met alongside the annual Congress sessions.
• ✓ (b) Congress presidents Dadabhai Naoroji (1886) and Badruddin Tyabji (1887) held that social reform should stay off the Congress agenda. Their reasoning was that Congress spoke for all communities, whereas a social reform question affects only some particular part or community of India. Reformers therefore needed a separate forum.
• ✗ (c) The Conference was not formed simply to bring the country's reform groups under one organisation. It was formed because the Congress platform excluded social questions. Its founder was Ranade.
• ✗ (d) Option (b) is correct, so 'none of the above' cannot be right.

Remember · Congress stayed political, so Ranade founded the (Indian) National Social Conference in 1887 as a separate social reform forum that met alongside Congress sessions.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 1 and 2 only

Statements 1 and 2 are correct and statement 3 is wrong, so the answer is (b). The Brahmo Samaj, founded by Raja Rammohan Roy in 1828, rejected image worship and the ritual hold of the priestly class. It did not accept the Vedas as infallible.

• ✓ 1. The Samaj forbade idol-worship and discarded meaningless rites and rituals. It stood for the worship of one formless God.
• ✓ 2. Rammohan Roy condemned the priestly class. He held that the principal ancient Hindu texts themselves preached monotheism, the worship of one God, so believers did not need priests to interpret them. He translated the Upanishads into Bengali so people could read them directly.
• ✗ 3. The Brahmo Samaj did not accept the authority of the Vedas and had no faith in avatars. The doctrine that the Vedas are infallible was championed by Dayananda Saraswati's Arya Samaj, not by the Brahmo Samaj.

Remember · Brahmo Samaj (1828, Rammohan Roy): monotheism, against idolatry and priestly ritualism, no acceptance of Vedic authority. Arya Samaj (1875, Dayananda): Vedas infallible.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 only

The Lahore Congress of December 1929, presided over by Jawaharlal Nehru, committed the Congress to Purna Swaraj (complete independence), so statement 1 is correct. It was not the session that ended the Moderate–Extremist split, and it passed no resolution on the two-nation theory, so statements 2 and 3 are wrong. The answer is (a).

• ✓ 1. The Lahore session in December 1929 proclaimed the Congress's commitment to 'Purna Swaraj', or complete independence. Independence Day was then observed on 26 January 1930.
• ✗ 2. The Congress split into Moderates and Extremists at Surat in 1907, and the two camps came back together at the Lucknow session of 1916. The Lahore session of 1929 is remembered for the Purna Swaraj commitment and for Nehru's election as President, not for any reconciliation of the two camps.
• ✗ 3. The two-nation theory, that India consisted of two 'peoples', Hindus and Muslims, was the Muslim League's basis for demanding Pakistan. The Congress opposed this theory and the Pakistan demand, but no resolution of this kind was passed at Lahore in 1929.

Remember · Lahore Congress, December 1929, president Jawaharlal Nehru: Purna Swaraj adopted as the goal. Independence Day was first observed on 26 January 1930.

📘 Read it in NCERT: Class 12 Themes in Indian History, Part III, Ch 3 (practise this chapter) · Class 12 Politics in India since Independence, Ch 1 (practise this chapter) · Class 8 Exploring Society: India and Beyond (Part 2), Ch 2 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) None of the statements (a), (b) and (c) given above is correct

The ministries resigned in protest against Britain's unilateral decision to involve India in the Second World War. The Viceroy did not consult Indian leaders, and talks on India's role in the war broke down. None of the reasons in (a), (b) or (c) was the cause.

• ✗ (a) Failure to form ministries elsewhere was not the reason for resigning. The resignations were a political protest over the war issue.
• ✗ (b) The Congress left wing (Socialists, Subhas Bose's group) was not what ended the ministries. They quit after negotiations with Viceroy Linlithgow on India's part in the war broke down.
• ✗ (c) Communal disturbances were not the trigger. The Congress wanted Britain to promise independence after the war. The British refused to concede the demand, and the ministries resigned in protest.
• ✓ (d) The actual cause was the war issue and the breakdown of talks with the Viceroy, which none of (a)–(c) mentions.

Remember · Congress ministries (1937–39) resigned in October–November 1939 in protest at India being dragged into the Second World War without consultation, after talks with Viceroy Linlithgow broke down.

📘 Read it in NCERT: Class 12 Themes in Indian History, Part III, Ch 3 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1 and 3 only

The 1919 Act (Montagu–Chelmsford Reforms) brought in diarchy in the provinces and shifted powers from the Centre to the provinces. Separate communal electorates for Muslims had been introduced earlier, by the Morley–Minto Act of 1909.

• ✓ 1. The Act split provincial government into 'transferred' subjects, run by Indian ministers answerable to the legislature, and 'reserved' subjects, run by the Governor and his executive council. This is diarchy. It applied in the eight major Governors' Provinces; there was no diarchy at the Centre.
• ✗ 2. Separate electorates for Muslims came with the Indian Councils Act of 1909 (Morley–Minto Reforms), which followed Viceroy Minto's wish to give Muslims separate representation. The 1919 Act kept and extended communal representation, but it did not introduce it.
• ✓ 3. The 1919 Act transferred some functions to the provincial governments, which also became responsible for raising taxes to fund them. Subjects were divided into central and provincial lists, and provincial legislatures gained wider powers.

Remember · 1909 Morley–Minto Act: separate electorates for Muslims. 1919 Montagu–Chelmsford Act: diarchy in the provinces, with devolution to them, and a bicameral Centre. 1935 Act: provincial autonomy.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) Government of India Act, 1935

The Government of India Act, 1935 was the first law to divide legislative powers between a central (federal) legislature and the provinces by means of three lists. The Seventh Schedule of the Constitution (Union, State and Concurrent Lists) keeps this three-list scheme.

• ✓ (c) The 1935 Act made the provinces autonomous in their own spheres. It divided legislative subjects into Federal, Provincial and Concurrent Lists. The Constitution retained this arrangement as the Union, State and Concurrent Lists, but gave residuary powers to the Union; under the 1935 Act they had rested with the Governor-General.
• ✗ (b) The 1919 Act (Montagu-Chelmsford) separated central and provincial subjects and introduced diarchy in the provinces. It had no three-list scheme and did not create a federation.
• ✗ (a) The 1909 Morley-Minto Reforms enlarged the legislative councils and introduced separate electorates for Muslims. They did not divide powers between the Centre and the provinces.
• ✗ (d) The Indian Independence Act, 1947 created the two dominions of India and Pakistan and ended British rule. It did not lay down a scheme for dividing powers between the Centre and the States.

Remember · The three-list division (Union, State, Concurrent) of the Seventh Schedule comes from the Government of India Act, 1935. The one change was residuary powers, which the Constitution gives to the Union.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1, 2 and 3

All three statements are correct, so the answer is (c). The Ryotwari Settlement, developed by Alexander Read and Thomas Munro in south India, was made directly with the individual cultivator (ryot). Each ryot held his land from the Government under a patta, and his fields were surveyed before the revenue was assessed.

• ✓ 1. There was no zamindar or other intermediary. The settlement was made directly with the cultivators (ryots), so each ryot paid the land revenue straight to the Government.
• ✓ 2. Under Ryotwari the Government issued each ryot a patta. This was the document recording the land he held directly under the Government and the revenue he was liable to pay.
• ✓ 3. Under the Munro system, each ryot's fields had to be carefully and separately surveyed before the revenue assessment was made.

Remember · Ryotwari (Read and Munro, Madras): direct settlement with each ryot, who held a patta; fields surveyed and assessed individually; revenue revised periodically, not fixed permanently.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 only

Dadabhai Naoroji is remembered for his 'drain of wealth' theory. He used British official figures to show how colonial rule impoverished India. This economic critique shaped early nationalist thought. Reinterpreting ancient texts and putting social reform first were not his contributions.

• ✓ 1. In 'Poverty and Un-British Rule in India' (1901), Naoroji compiled British reports to estimate the wealth drained out of India. This exposure of economic exploitation was his main contribution to the national movement.
• ✗ 2. Reinterpreting ancient Indian texts to restore self-confidence is linked to religious and cultural reformers such as Dayananda Saraswati and Vivekananda. Naoroji was a political and economic thinker, not a textual interpreter.
• ✗ 3. Naoroji's focus in the national movement was political and economic. He played a leading role in founding the Indian National Congress in 1885 and exposed the economic drain. He did not argue that all social evils must be removed before anything else.

Remember · Dadabhai Naoroji is the 'Grand Old Man of India'. His drain of wealth theory, set out in 'Poverty and Un-British Rule in India', was a pioneering economic critique of British rule.

📘 Read it in NCERT: Class 8 Exploring Society: India and Beyond (Part 1), Ch 4 (practise this chapter) · Class 8 Exploring Society: India and Beyond (Part 2), Ch 2 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) None

None of the three was an English introduction. Under Akbar, Todar Mal assessed revenue crop by crop. Babur used field artillery at Panipat in 1526. Tobacco and chillies came from the New World in the 16th–17th centuries. All of this came before the English established themselves in India.

• ✗ 1. Todar Mal, Akbar's finance minister, made detailed surveys of crop yields and prices. On that basis he fixed rates for each crop. This was a Mughal revenue system, long before any English revenue settlement.
• ✗ 2. Babur defeated Ibrahim Lodi at Panipat in 1526 by relying heavily on gunpowder, field artillery and matchlock guns. That was nearly a century before the English gained any foothold in India.
• ✗ 3. Akbar and his nobles first came across tobacco in 1604, and smoking soon became widespread. Chillies were introduced from the New World in the same period, along with tomatoes and potatoes. Neither crop was an English introduction.

Remember · Todar Mal's crop-based revenue system, Babur's field artillery at Panipat (1526), and New World crops such as tobacco and chillies all pre-date English rule. None was introduced by the English.

📘 Read it in NCERT: Class 8 Exploring Society: India and Beyond (Part 1), Ch 2 (practise this chapter) · Class 8 Exploring Society: India and Beyond (Part 1), Ch 2 (practise this chapter) · Class 12 Themes in Indian History, Part II, Ch 4 (practise this chapter) · Class 12 Themes in Indian History, Part II, Ch 4 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 2 and 3 only

Ambedkar founded the Independent Labour Party in 1936 and the All India Scheduled Castes Federation in 1942. The Peasants and Workers Party was founded by Keshavrao Jedhe after he left the Congress. Ambedkar had no part in founding it. So only 2 and 3 are correct.

• ✗ 1. The Peasants and Workers Party (PWP) was founded by Keshavrao Jedhe after he left the Congress. It was a separate peasant–worker party, and Ambedkar did not found it.
• ✓ 2. Ambedkar founded the All India Scheduled Castes Federation in 1942 at Nagpur, as a political party for the Scheduled Castes.
• ✓ 3. Ambedkar formed the Independent Labour Party on 15 August 1936 to safeguard the interests of the depressed classes, who mostly formed the labour population.

Remember · Ambedkar's parties, in order: Independent Labour Party (1936), then All India Scheduled Castes Federation (1942). The Peasants and Workers Party came from Keshavrao Jedhe's break with the Congress.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) Ramsay Macdonald announced the Communal Award.

In August 1932 the British Prime Minister Ramsay MacDonald announced the Communal Award. It gave separate electorates to the Depressed Classes. Gandhi, then in Yerwada jail, began a fast unto death in September 1932 to oppose this. The fast ended with the Poona Pact.

• ✗ (a) The Round Table Conferences did fail to settle minority representation. But Gandhi's fast targeted one specific British decision, separate electorates for the Depressed Classes. It was not a protest against the conferences in general.
• ✗ (b) Congress and the Muslim League disagreed on many issues, but the 1932 fast was not about that dispute. It was about separate electorates for the Depressed Classes, which Gandhi believed would slow their integration into society.
• ✓ (c) The Communal Award, announced by MacDonald, extended separate electorates to the Depressed Classes. Gandhi began his fast unto death against this. He ended it after the Poona Pact of 24 September 1932 was accepted. The Pact replaced separate electorates with seats reserved for the Depressed Classes within the general electorate.
• ✗ (d) Statement (c) is correct, so 'none of the above' cannot be the answer.

Remember · Communal Award (Aug 1932, Ramsay MacDonald): separate electorates for Depressed Classes. Gandhi's fast unto death (20 Sept 1932) led to the Poona Pact (24 Sept 1932): reserved seats, joint electorate.

📘 Read it in NCERT: Class 10 India and the Contemporary World – II, Ch 2 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) three main styles of Indian temple architecture

Nagara (north), Dravida (south) and Vesara (a mix, mainly in the Deccan) are the three orders of Indian temple architecture.

• ✗ (a) They are architectural terms, not racial groups.
• ✗ (b) They are not linguistic divisions.
• ✓ (c) Nagara (north), Dravida (south) and Vesara (hybrid, Deccan) are the three temple styles.
• ✗ (d) Gharanas are schools of Hindustani music; these three terms have nothing to do with them.

Remember · Nagara: north; Dravida: south; Vesara: hybrid Deccan.

📘 Read it in NCERT: Class 11 An Introduction to Indian Art, Part I, Ch 6 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 24 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 2 and 3 only

Dhrupad is an ancient devotional form, sung in praise of gods, and its alap uses syllables drawn from mantras. It was not a product of the Mughal period: it was already being developed in Rajput courts such as Gwalior in the late 15th century, before the Mughals arrived in 1526.

• ✗ 1. Dhrupad is a genre of great antiquity. NCERT places its development to new heights under Raja Mansingh Tomar of Gwalior in the late 15th century, before Babur's victory in 1526, so it did not originate during the Mughal period.
• ✓ 2. Dhrupad is devotional and spiritual in character; it was used in praise of gods, heroes and kings and its temple tradition is strong.
• ✓ 3. Dhrupad alap is sung with syllables derived from mantras (the nom-tom syllables), not with song text.

Remember · Dhrupad: ancient, devotional, alap on mantra-derived syllables; Man Singh Tomar of Gwalior (late 15th century) raised it to new heights, before the Mughals.

📘 Read it in NCERT: Class 8 Exploring Society: India and Beyond (Part 2), Ch 8 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 24 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 only

Kuchipudi grew out of Telugu dance-dramas in which the performers sing and speak, so statement 1 is right. The brass-plate dance (tarangam), with feet on the rim of the plate, is a Kuchipudi feature, so statement 2 reverses the facts.

• ✓ 1. Kuchipudi comes from dance-dramas (Bhagavata Mela style) in which dancers also sing and speak dialogue; Bharatanatyam is a solo form without spoken dialogue.
• ✗ 2. Dancing on the edges of a brass plate (tarangam) is a well-known Kuchipudi item. Bharatanatyam does not have it, so the statement is the wrong way round.

Remember · Kuchipudi: dance-drama from Andhra Pradesh, dancers sing and speak; tarangam (dancing on a brass plate) is its speciality.

📘 Read it in NCERT: Class 11 Knowledge Traditions and Practices of India, Part I, Ch 3 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 24 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 2 and 3 only

Both Buddha and Mahavira rejected the authority of the Vedas and the value of sacrificial rituals. Avoiding extremes is the Buddha's 'middle path'; Jainism, by contrast, prescribes severe penance.

• ✗ 1. The Middle Path between penance and indulgence is a Buddhist teaching. Jainism upholds rigorous austerity and fasting as the way to shed karma.
• ✓ 2. Both Mahavira and the Buddha questioned the authority of the Vedas.
• ✓ 3. Both rejected Vedic sacrifices and ritual as the means to liberation, stressing right conduct and knowledge.

Remember · Common to both: rejection of Vedic authority and ritual. Middle path is Buddhist only; severe austerity is Jain.

📘 Read it in NCERT: Class 12 Themes in Indian History, Part I, Ch 4 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 24 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) Buddha’s calling of the Earth to witness his purity and chastity despite the temptations of Mara

In the Bhumisparsha (earth-touching) mudra the Buddha touches the ground with his right hand, calling the Earth to witness his right to enlightenment and his purity of resolve against Mara's challenge. NCERT describes the Buddha at the Mara Vijaya shown with his right hand pointing to the earth as witness.

• ✗ (a) The Earth is called as a witness to the Buddha's purity, not as a guard to stop Mara.
• ✓ (b) Touching the ground, the Buddha calls the Earth to witness his purity and resolve against Mara's temptations.
• ✗ (c) This is a reflection on impermanence, not the meaning of the gesture.
• ✗ (d) Statement (a) is wrong, so (d) fails.

Remember · Bhumisparsha mudra: right hand touching the ground, Earth as witness to the Buddha's enlightenment (Mara Vijaya).

📘 Read it in NCERT: Class 11 An Introduction to Indian Art, Part I, Ch 4 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 24 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 2 and 3 only

The Gandhian strand of the Directive Principles covers village self-government (Article 40) and rural cottage industries (Article 43). The uniform civil code (Article 44) is a liberal-intellectual principle. Workers' leisure and cultural opportunities (Article 43) belong to the socialist group. So the answer is 2 and 3 only.

• ✗ 1. Article 44 asks the State to secure a uniform civil code for citizens throughout India. It is a liberal-intellectual principle about a common civil law for all citizens. It is not part of Gandhi's village-centred vision.
• ✓ 2. Article 40 directs the State to organise village panchayats and give them the powers they need to work as units of self-government. This is the Gandhian ideal of gram swaraj.
• ✓ 3. Article 43 directs the State to promote cottage industries on an individual or co-operative basis in rural areas. This is the Gandhian idea of a self-reliant village economy.
• ✗ 4. Article 43 also speaks of a decent standard of life and full enjoyment of leisure and social and cultural opportunities for workers. This is a socialist, worker-welfare principle. Only the cottage-industries clause in the same Article is Gandhian.

Remember · Gandhian DPSPs: Art 40 (village panchayats), Art 43 (rural cottage industries), Art 46 (weaker sections), Art 47 (prohibition of intoxicants) and Art 48 (cattle protection). Art 44, the uniform civil code, is liberal-intellectual.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2, 3, 4 and 5

All five provisions have a bearing on education, so the answer is (d). The Directive Principles, the Eleventh and Twelfth Schedules (rural and urban local bodies), the Sixth Schedule and the Seventh Schedule name education or schools directly. The Fifth Schedule bears on it through the Tribes Advisory Council's duty to advise on the welfare and advancement of Scheduled Tribes.

• ✓ 1. Article 45 directs the State to provide early childhood care and education for all children until they complete six years of age. Article 46 directs the State to promote with special care the educational and economic interests of the weaker sections, especially SCs and STs.
• ✓ 2. The Eleventh Schedule (Panchayats) lists 'Education, including primary and secondary schools' as entry 17. It also lists technical training, vocational education, and adult and non-formal education. The Twelfth Schedule (Municipalities) lists 'Promotion of cultural, educational and aesthetic aspects' as entry 13.
• ✓ 3. Under the Fifth Schedule, a Tribes Advisory Council is set up in States having Scheduled Areas. Its role is to give advice on questions concerning the welfare and advancement of the Scheduled Tribes. Educational advancement falls within that broad remit, so the Schedule bears on education in a general rather than explicit way.
• ✓ 4. Paragraph 6 of the Sixth Schedule lets the District Council of an autonomous district establish, construct or manage primary schools. It can also prescribe the language and manner in which primary education is imparted in the district. This Schedule covers tribal areas of Assam, Meghalaya, Tripura and Mizoram.
• ✓ 5. Education, including technical education, medical education and universities, is entry 25 of the Concurrent List (List III). This is subject to List I entries 63–66, which deal with institutions of national importance, central agencies for training and research, and the coordination and determination of standards in higher education. The State List entry on education was removed in 1976 when the subject moved to the Concurrent List.

Remember · Education runs through the Constitution: Articles 45 and 46 (DPSP), Eleventh Schedule entry 17, Twelfth Schedule entry 13, Sixth Schedule para 6, and Seventh Schedule List III entry 25 (with List I entries 63–66). The Fifth Schedule bears on it through tribal welfare and advancement.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1, 3 and 4 only

Article 51A lists the Fundamental Duties. These include preserving our composite culture, developing scientific temper and the spirit of inquiry, and striving towards excellence. No duty there concerns protecting weaker sections from social injustice. That is a State obligation under the Directive Principles. So 1, 3 and 4 are correct.

• ✓ 1. Clause (f) of Article 51A asks every citizen to value and preserve the rich heritage of our composite culture.
• ✗ 2. No clause of Article 51A mentions protecting weaker sections from social injustice. Under Article 46 of the Directive Principles, the State must protect weaker sections from social injustice. It is not a citizen's duty.
• ✓ 3. Clause (h) of Article 51A asks citizens to develop the scientific temper, humanism and the spirit of inquiry and reform.
• ✓ 4. Clause (j) of Article 51A asks citizens to strive towards excellence in all spheres of individual and collective activity.

Remember · Article 51A (Part IVA, added by the 42nd Amendment) lists the Fundamental Duties. Protecting weaker sections from social injustice is a State duty under Article 46 (DPSP), not a Fundamental Duty.

📘 Read it in NCERT: Class 11 Indian Constitution at Work

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1, 3 and 4 only

Three Articles of the Constitution name the President as the person who lays the document before Parliament. These are Article 281 (Finance Commission), Article 151 (CAG reports) and Article 338(6) (National Commission for Scheduled Castes). The Public Accounts Committee is a committee of Parliament, so its reports are presented to the House by the Committee itself and not through the President.

• ✓ 1. Article 281 says the President shall cause every Finance Commission recommendation, with an explanatory memorandum on the action taken, to be laid before each House of Parliament.
• ✗ 2. The PAC is a parliamentary committee, and its reports are presented to the House by the Committee itself. No constitutional provision makes the President lay them.
• ✓ 3. Under Article 151(1), CAG reports on the Union accounts are submitted to the President, who causes them to be laid before each House of Parliament.
• ✓ 4. Article 338(6) says the President shall cause the Commission's reports to be laid before each House, along with a memorandum on the action taken or proposed.

Remember · President lays before Parliament: Finance Commission recommendations (Art 281), CAG reports (Art 151) and NCSC reports (Art 338). PAC reports go to the House directly from the Committee.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) Need not necessarily be a member of one of the Houses of the Parliament but must become a member of one of the Houses within six months

The Constitution does not require the Prime Minister to be an MP when appointed. Article 75(5) says a Minister who is not a member of either House for six consecutive months ceases to be a Minister. So a non-member PM must enter either the Lok Sabha or the Rajya Sabha within six months.

• ✓ (a) Article 75(1) only says the President appoints the PM. Article 75(5) allows a non-member to stay in office for six consecutive months, so the person must join either House within that time.
• ✗ (b) The Constitution does not require the Lok Sabha specifically. Membership of either House is enough, and Rajya Sabha members such as Manmohan Singh have served as PM.
• ✗ (c) Prior membership at the time of appointment is not mandatory. Article 75(5) gives a six-month window.
• ✗ (d) Nothing in Article 75 limits the PM to the Lok Sabha, and a person who is not yet a member can be appointed.

Remember · Article 75(5): any Minister, including the PM, must become a member of either House of Parliament within six consecutive months. The Lok Sabha is not compulsory.

📘 Read it in NCERT: Class 11 Indian Constitution at Work, Ch 4 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) to allow a discussion on a definite matter of urgent public importance.

An adjournment motion is a Lok Sabha device. It sets aside the House's normal business so that members can discuss one definite matter of urgent public importance, with the Speaker's consent. That is exactly option (a).

• ✓ (a) Rule 56 of the Lok Sabha rules provides for a motion to adjourn the business of the House to discuss a definite matter of urgent public importance. Such a motion can be moved with the Speaker's consent. If admitted, normal business is set aside for that discussion.
• ✗ (b) Collecting information from ministers is the job of Question Hour and similar tools. An adjournment motion is meant to take the Government to task for a recent act of omission or commission with serious consequences. Its adoption is regarded as a sort of censure of the Government.
• ✗ (c) Reducing amounts in demands for grants is done through cut motions during the Budget process. Cut motions are a separate device and have nothing to do with adjournment motions.
• ✗ (d) Disorderly conduct is handled through the Speaker's disciplinary powers under the rules, for example naming and suspending a member. An adjournment motion is not meant for this.

Remember · Adjournment motion (Rule 56, Lok Sabha only): moved with the Speaker's consent, it sets aside normal business to discuss one definite, urgent, recent matter of public importance. Its adoption amounts to censure of the Government.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) None

All three statements are wrong. Union Territories do send representatives to the Rajya Sabha. Election disputes are decided by courts, not by the Chief Election Commissioner. The President is also a part of Parliament, along with the two Houses.

• ✗ 1. Article 80 provides for representatives of the Union territories in the Rajya Sabha, chosen in the manner Parliament prescribes by law. In 2012, Delhi and Puducherry sent members.
• ✗ 2. Article 329(b) says an election to Parliament or a State Legislature can be questioned only through an election petition. Under the Representation of the People Act, 1951, the High Court tries such petitions. Disputes about the President's or Vice-President's election go to the Supreme Court (Article 71). The Election Commission conducts elections (Article 324); it does not adjudicate them.
• ✗ 3. Article 79 makes the President a component of Parliament, alongside the Lok Sabha and the Rajya Sabha. So a description of Parliament as the two Houses 'only' is wrong.

Remember · Parliament = President + Lok Sabha + Rajya Sabha (Art 79). Union Territories do send members to the Rajya Sabha. Election petitions go to the High Court, and the Supreme Court decides President/Vice-President disputes.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 3 only

Article 94 of the Constitution lets the Speaker resign by a letter addressed to the Deputy Speaker. It says nothing about the President's pleasure. Article 93 requires the House to choose the Speaker from among its own members, so only statement 3 is correct.

• ✗ 1. The President has no role in the Speaker's tenure; the Speaker is chosen by the House. Article 94 lists how the office is vacated: by ceasing to be a member of the House, by resigning, or by removal through a resolution of the House. None of these involves the President's pleasure.
• ✗ 2. Article 93 says the House chooses 'two members of the House' as Speaker and Deputy Speaker. So the Speaker must already be a member when elected. There is no six-month window to become one.
• ✓ 3. Article 94(b) says the Speaker may resign 'by writing under his hand addressed… to the Deputy Speaker'. The Deputy Speaker's resignation goes to the Speaker.

Remember · The Speaker is elected from among Lok Sabha members (Art. 93). Resignation goes to the Deputy Speaker. Removal needs a resolution that gets the support of a majority of the entire membership of the House at that time, after at least 14 days' notice (Art. 94).

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) To pass a resolution empowering the Parliament to make laws in the State List and to create one or more All India Services.

Option (b) is correct. Under Article 249, the Rajya Sabha (Council of States) can pass a resolution letting Parliament make laws on a State List subject in the national interest. Under Article 312, it can pass a resolution letting Parliament create one or more new All India Services. Each of these resolutions must be passed by at least two-thirds of the members who are present and voting. Only the Rajya Sabha holds these powers.

• ✗ (a) Under Article 3, Parliament can alter a State's territory, boundaries or name by ordinary law. Both Houses take part, and the Rajya Sabha has no special or exclusive role.
• ✓ (b) Article 249 (State List laws in the national interest) and Article 312 (creating All India Services) both need a Rajya Sabha resolution backed by at least two-thirds of members present and voting. The Lok Sabha has no such power.
• ✗ (c) Changing the President's election procedure needs a constitutional amendment passed by both Houses and ratified by at least half the States. The President's pension is fixed by a law passed by both Houses. The Rajya Sabha has no special power over either.
• ✗ (d) Under Article 324(2), the President fixes the number of Election Commissioners. The Rajya Sabha has no special role in deciding the Commission's size or functions.

Remember · Only the Rajya Sabha can pass the two-thirds resolutions under Article 249 (Parliament legislates on a State List subject) and Article 312 (new All India Services).

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 only

A joint sitting under Article 108 is available only to resolve a deadlock over an ordinary Bill. Money Bills and Constitution Amendment Bills are excluded, because each has its own procedure.

• ✓ 1. If the two Houses disagree over an ordinary Bill, the President may notify the intention to summon a joint sitting under Article 108. A majority of the total members of both Houses present and voting then decides the matter.
• ✗ 2. A Money Bill has no deadlock procedure. Rajya Sabha must return it, with or without recommendations, within 14 days of receiving it. Lok Sabha may accept or reject those recommendations, and the Bill is treated as passed either way.
• ✗ 3. A Constitution Amendment Bill falls outside the joint-sitting provision. Article 368 requires each House to pass it separately by a special majority, so a deadlock cannot be resolved by a joint sitting.

Remember · Joint sitting (Art. 108) is only for ordinary Bills. Money Bills and Constitution Amendment Bills never go to a joint sitting. Financial Bills (Art. 117(1)) are not excluded.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) Both 1 and 2

Both statements are correct. Once a Delimitation Commission order is published in the Gazette of India, it has the force of law and cannot be questioned in any court. Copies are laid before the Lok Sabha and the State Legislative Assemblies concerned, but they cannot modify the orders.

• ✓ 1. Section 10(2) of the Delimitation Act, 2002 provides that on publication in the Gazette of India, every order of the Commission has the force of law and cannot be called in question in any court. Its orders therefore cannot be challenged in a court of law.
• ✓ 2. Copies of the Commission's orders are laid before the House of the People (Lok Sabha) and the State Legislative Assembly concerned. No modification in them is permissible by these legislatures.

Remember · Delimitation Commission orders have the force of law. No court can question them, and the Lok Sabha and State Assemblies before which they are laid cannot amend them.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1, 2, 3 and 5 only

Statements 1, 2, 3 and 5 are real tools of Parliament's financial control, each rooted in the Constitution's Budget procedure. Statement 4 fails because India had no Parliamentary Budget Office in 2012. The closest proposal, a fiscal council, was meant to report to the Finance Ministry, not to Parliament.

• ✓ 1. Article 112 requires the President to lay the Annual Financial Statement (the Budget) before both Houses of Parliament. This puts the government's estimated receipts and expenditure under Parliament's scrutiny.
• ✓ 2. Article 114(3) bars any withdrawal from the Consolidated Fund of India except under an appropriation made by law. That law is the Appropriation Act, passed by Parliament.
• ✓ 3. Under Article 115, a supplementary grant is needed when the amount already authorised for a year proves insufficient. Under Article 116, the Lok Sabha can make a grant in advance (vote on account) for part of the year while the full Budget procedure is pending. Both require parliamentary approval.
• ✗ 4. India had no Parliamentary Budget Office in 2012. The 13th Finance Commission (December 2009) only hoped that a review committee would, over time, evolve into a fiscal council. That council was to be an autonomous body reporting to the Ministry of Finance, not to Parliament. Fiscal reviews such as the Macro-economic Framework Statement were presented by the government itself under the FRBM Act, not by a parliamentary office.
• ✓ 5. The Finance Bill is presented under Article 110(1)(a) and carries the tax proposals of the Budget. Article 265 says no tax can be levied or collected except by authority of law. Parliament's passing of this Bill is therefore its control over taxation.

Remember · Parliament controls money through the Budget (Art. 112), the Appropriation Act (Art. 114), supplementary grants and vote on account (Arts. 115–116) and the Finance Bill (Arts. 110 and 265). India had no Parliamentary Budget Office in 2012.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1 and 4

Article 131 gives the Supreme Court exclusive original jurisdiction over legal disputes between the Centre and one or more States, and between two or more States. So statements 1 and 4 are correct. Election petitions for Parliament and State Legislatures are tried by the High Court. A Union Territory is not a 'State' under Article 131.

• ✓ 1. A dispute between the Government of India and one or more States is the first category under Article 131. Such a dispute is filed directly in the Supreme Court.
• ✗ 2. Election petitions about Parliament or State Legislature seats are tried by the High Court under Section 80A of the Representation of the People Act, 1951. The Supreme Court hears only appeals from those decisions.
• ✗ 3. Article 131 covers disputes involving 'States'. A Union Territory is not a State, so a Centre–UT dispute is not within this original jurisdiction.
• ✓ 4. A dispute between two or more States is expressly listed in Article 131, so it falls directly under the Supreme Court's exclusive original jurisdiction.

Remember · Article 131: the Supreme Court alone hears Centre–State and inter-State legal disputes. Election petitions for Parliament and State Legislatures go to the High Court, and Union Territories are not covered.

📘 Read it in NCERT: Class 8 Exploring Society: India and Beyond (Part 2), Ch 4 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 and 3 only

In 2012, Article 124(2) required the President to consult the Chief Justice of India when appointing any other Supreme Court Judge. Judges' salaries are charged on the Consolidated Fund, so Parliament does not vote on them. Removal is by Parliament and the President, and staff appointments rest with the Chief Justice, not the Government.

• ✓ 1. As Article 124(2) stood in 2012, its proviso said that when a Judge other than the Chief Justice is appointed, the Chief Justice of India shall always be consulted.
• ✗ 2. Under Article 124(4), a Judge can be removed only by an order of the President. That order follows an address by each House of Parliament passed with a special majority. The Chief Justice has no power to remove a Judge.
• ✓ 3. Article 112(3)(d)(i) charges the salaries, allowances and pensions of Supreme Court Judges on the Consolidated Fund of India. Article 113(1) says such charged expenditure is not submitted to the vote of Parliament, though it can be discussed.
• ✗ 4. Under Article 146(1), officers and servants of the Court are appointed by the Chief Justice of India, or by a Judge or officer he directs. The Government does not make these appointments, even after consultation.

Remember · Judicial independence: Judges are removed only by Parliament's address and the President's order, salaries are charged and non-votable, and the Chief Justice controls Court staff appointments (Art. 146).

📘 Read it in NCERT: Class 11 Indian Constitution at Work, Ch 6 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 1 and 2 only

PESA, 1996 gives the Gram Sabha the power to prevent land alienation and ownership of minor forest produce. Its mandatory recommendation before a prospecting licence or mining lease applies only to minor minerals, not to every mineral. So statement 3 fails, and the answer is 1 and 2 only.

• ✓ 1. Section 4(m)(iii) gives the Gram Sabha and Panchayats the power to prevent alienation of land in the Scheduled Areas. It also lets them take action to restore any unlawfully alienated land of a Scheduled Tribe.
• ✓ 2. Section 4(m)(ii) lists ownership of minor forest produce among the specific powers of the Gram Sabha and Panchayats.
• ✗ 3. Section 4(k) makes the recommendation of the Gram Sabha or Panchayat mandatory only before a prospecting licence or mining lease for minor minerals. It does not cover 'any mineral', so major minerals fall outside it.

Remember · Under PESA 1996, the Gram Sabha owns minor forest produce and can prevent tribal land alienation. Its mining recommendation role covers only minor minerals.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 2 and 3 only

The CAG is an audit authority, not a judicial one. His reports are laid before Parliament and examined by the Public Accounts Committee. Fraud and corruption noticed in audit can be reported directly to other authorities, so his findings can support action by investigating agencies. He has no special emergency role and no power to prosecute.

• ✗ 1. The CAG audits the accounts of the Union and the States under Article 149 and the 1971 Act. Nothing in these gives him an 'exchequer control' role that begins when a national or financial emergency is declared. In India he does not control the release of money from the Consolidated Fund at all.
• ✓ 2. Under Article 151, the CAG's reports on Union accounts are submitted to the President and laid before each House of Parliament. The Public Accounts Committee examines the Appropriation Accounts and the CAG's Report on them, so his reports form the basis of its work.
• ✓ 3. CAG audit reports become public once laid before Parliament. His audit regulations also provide for reporting cases of fraud and corruption noticed in audit directly to other authorities, under his general or special orders. Information from his audits can therefore be used by investigating agencies to act against those who violated the law in managing public funds.
• ✗ 4. The CAG's audit powers are to inspect offices of accounts, call for books and papers, and put questions. Government companies are audited in accordance with the Companies Act, as Section 19 of the 1971 Act provides. He has no judicial or prosecuting power; prosecution is for investigating agencies and the courts.

Remember · The CAG audits and reports; he does not prosecute or adjudicate. His reports go to Parliament (Art. 151), are examined by the PAC, and can help investigating agencies act on irregularities.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1 and 3 only

The Thirteenth Finance Commission proposed a model GST with a compensation fund tied to conditions. It also fixed grants to local bodies as a percentage of the divisible pool of central taxes. It gave no plan for creating lakhs of jobs, and mentioned the demographic dividend only as a reason to invest in human development. So statements 1 and 3 are correct.

• ✓ 1. Chapter 5 of the report designs a model GST and proposes a 'Grand Bargain' between the Centre and states. A GST Compensation Fund would pay states for revenue loss. The Centre's transfers to this fund are subject to specified conditionalities, so compensation is linked to adherence to the proposed design.
• ✗ 2. The report refers to the demographic dividend only as something to be harnessed through investment in human development, particularly education and public health. It has no recommendation designing the creation of lakhs of jobs over ten years.
• ✓ 3. Chapter 10 recommends grants to local bodies worked out as a percentage of the previous year's divisible pool of central taxes. The award comes to 2.28 per cent of the relevant divisible pool for 2009-14. So a specified share of central taxes flows to local bodies in the form of grants.

Remember · The Thirteenth Finance Commission (2010-15, chaired by Vijay Kelkar) proposed a GST design with a conditional compensation fund, and grants to local bodies at 2.28% of the divisible pool. It did not propose a jobs plan.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1 and 3 only

Food law lets a purchaser have food analysed by the official Food Analyst. The Consumer Protection Act, 1986 lets the legal heir or representative of a deceased consumer file a complaint. Consumer forums did charge a complaint fee, so statement 2 is wrong. Statements 1 and 3 are correct.

• ✓ 1. Section 40 of the Food Safety and Standards Act, 2006 lets any purchaser of food, other than a Food Safety Officer, have it analysed by the Food Analyst. The purchaser pays the prescribed fee and receives a report of the analysis.
• ✗ 2. Rule 9A of the Consumer Protection Rules, 1987 requires a fee with a complaint to the District Forum. For claims up to Rs 1 lakh, complainants other than Antyodaya Anna Yojana card-holders paid Rs 100. Claims above Rs 1 lakh and up to Rs 5 lakh carried a fee of Rs 200, with higher fees for larger claims.
• ✓ 3. Section 2(1)(b)(v) of the Consumer Protection Act, 1986 includes 'in case of death of a consumer, his legal heir or representative' in the definition of complainant.
• • Since then The Consumer Protection Act, 1986 has since been replaced by the Consumer Protection Act, 2019. The answer above reflects the law on the 2012 exam date.

Remember · Consumer rights in 2012: purchasers could get food tested by the Food Analyst, and legal heirs could file complaints. Complaints needed a fee; only Antyodaya cardholders with claims up to Rs 1 lakh paid nothing.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 2, 3 and 4 only

Inclusive governance means decentralised, participatory planning and public spending on basic services, so that the benefits of growth reach the poor and weaker sections. Effective District Planning Committees, higher public health spending and a stronger Mid-day Meal Scheme all fit this. Letting NBFCs do banking is a question of financial-sector regulation, not an essential part of inclusive governance. NBFCs are not banks.

• ✗ 1. NBFCs lend and invest, but they are not banks. They cannot accept demand deposits, are not part of the payment and settlement system, and cannot issue cheques drawn on themselves. Whether to let them do banking is a regulatory matter for the financial sector, not an essential part of inclusive governance.
• ✓ 2. Article 243ZD, inserted by the 74th Constitutional Amendment (1992), provides for a District Planning Committee in every district. Its job is to prepare a draft development plan for the district as a whole. Effective DPCs bring planning down to the local level, which is central to participatory, inclusive governance.
• ✓ 3. Public expenditure on health in India was only about 1.2 per cent of GDP. The Twelfth Plan document records the recommendation to raise it to at least 2.5 per cent of GDP by the end of the Plan. More public health spending widens access to health care for those who cannot afford it.
• ✓ 4. The Twelfth Plan, titled 'Faster, More Inclusive and Sustainable Growth', names Mid Day Meals alongside flagship social programmes such as Sarva Siksha Abhiyan, ICDS and NRHM. Strengthening the scheme supports children's nutrition and schooling, which makes it an inclusive measure.
• • Answer Statements 2, 3 and 4 are essential parts of inclusive governance. Statement 1 is not.

Remember · Inclusive governance covers decentralised planning (DPCs) and public spending on health, nutrition and education. NBFCs cannot accept demand deposits or issue cheques, so they are not banks.

📘 Read it in NCERT: Class 12 Social Change and Development in India, Ch 3 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2 and 3

All three measures come from the National Manufacturing Policy (NMP) of 2011. The NMP created National Investment and Manufacturing Zones (NIMZs) and provides for a Technology Acquisition and Development Fund. It also routes land allotment and other clearances for NIMZ units through a single body, the zone's Special Purpose Vehicle (SPV), which gives single-window clearance.

• ✓ 1. The NMP's main instrument is the creation of large integrated industrial townships called National Investment and Manufacturing Zones (NIMZs). These have state-of-the-art infrastructure and land use based on zoning.
• ✓ 2. In the NMP's NIMZ framework, proposals for individual units in a zone go to the zone's Special Purpose Vehicle (SPV). The SPV considers them for land allotment and other clearances. One agency handling a unit's clearances is the single-window facility for NIMZ units.
• ✓ 3. The NMP provides that the Central Government will set up a Technology Acquisition and Development Fund. Its stated uses include creating a patent pool and giving incentives for producing environment-friendly machines and equipment.

Remember · National Manufacturing Policy 2011 (targets: manufacturing at 25% of GDP, 100 million jobs) = NIMZs + single-window clearances through the zone SPV + Technology Acquisition and Development Fund.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1, 2, 3 and 4 only

The answer is (c). The Index of Eight Core Industries covers coal, crude oil, natural gas, refinery products, fertilizers, steel, cement and electricity. Cement, fertilizers, natural gas and refinery products are on this list, but textiles are not.

• ✓ 1. Cement is a core industry. It carries a weight of 2.406 in the index.
• ✓ 2. Fertilizers are a core industry, with a weight of 1.254.
• ✓ 3. Natural gas is a core industry, with a weight of 1.708.
• ✓ 4. Refinery products are a core industry, with a weight of 5.939. That is one of the larger weights in the group, behind only electricity and steel.
• ✗ 5. Textiles are not among the eight core industries. The eight are coal, crude oil, natural gas, refinery products, fertilizers, steel, cement and electricity, and their weights add up to 37.903 in the IIP.

Remember · The Eight Core Industries are coal, crude oil, natural gas, refinery products, fertilizers, steel, cement and electricity. Together they carry a 37.90% weight in the IIP (base 2004-05). Textiles are not included.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 2 and 3 only

India imports coal because domestic supply falls short in both quality and quantity. Steel makers need coking coal that the country does not have in sufficient amount or quality. Power plants rely on imported coal to cover the shortfall in domestic availability. There is no policy of conserving domestic coal by importing instead.

• ✗ 1. Imports are not a conservation policy. Coal can be freely imported under Open General Licence. The reasons for importing are supply gaps and quality, not saving reserves for the future.
• ✓ 2. Some power plants blend imported coal with domestic coal to bridge the shortfall in domestic availability. Domestic supply is not enough for coal-based power generation.
• ✓ 3. SAIL and other steel units import coking coal mainly to bridge the gap between their requirement and indigenous availability, and to improve quality.

Remember · India imports coking coal for steel because of gaps in quantity and quality, and non-coking coal to cover power-sector shortfalls. Coal imports are free under Open General Licence; they are not a policy for saving reserves.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1 and 3

Money supply rises when the central bank creates new reserve money. It does this by buying government securities from the public and by lending to the government. Moving existing currency into bank deposits, or the central bank selling securities, does not add money.

• ✓ 1. When the RBI buys government securities, it pays with newly created reserve money. This injects durable liquidity into the banking system and raises the money supply.
• ✗ 2. Money supply counts currency plus deposits. Depositing currency only shifts money from one form to the other, from currency with the public to a bank deposit, so the total does not rise from this act itself.
• ✓ 3. RBI credit to the government is a source of reserve money. When the RBI lends to the government, new money is created and infused into the system.
• ✗ 4. When the RBI sells securities, it absorbs money from the banking system. This reduces liquidity, so the money supply contracts rather than expands.

Remember · RBI buying securities or lending to the government creates money. RBI selling securities absorbs money. Shifting cash into bank deposits does not by itself change the money supply.

📘 Read it in NCERT: Class 12 Introductory Macroeconomics, Ch 3 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2 and 3

As banker to banks, the RBI keeps the accounts of banks, acts as their lender of last resort, and guides them with advice and cautions under its statutory powers. All three statements describe this role, so the answer is (d).

• ✓ 1. Banks keep accounts with the RBI to meet statutory reserve requirements and to hold transaction balances. They use these balances to settle dues among themselves.
• ✓ 2. The RBI is the lender of last resort. It supplies liquidity to a solvent bank facing a temporary shortage when no one else is willing to lend to it.
• ✓ 3. Section 36 of the Banking Regulation Act, 1949 empowers the RBI to caution or prohibit banks against particular transactions and to give advice to any banking company. As the monetary authority, the RBI guides banks within the monetary framework it sets.

Remember · Banker to banks means three things: banks hold accounts with the RBI, the RBI is lender of last resort, and the RBI advises and regulates banks.

📘 Read it in NCERT: Class 12 Introductory Macroeconomics, Ch 3 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) individual banks should adopt particular districts for intensive development

Under the Lead Bank Scheme, one bank is given lead responsibility for each district. That bank coordinates the credit institutions and government agencies in the district. The scheme follows an 'Area Approach' to building banking and credit in rural areas. This is the idea in option (c): individual banks adopt particular districts for intensive development.

• ✓ (c) A particular bank is assigned lead responsibility for a district and takes the leadership role there. It coordinates the credit institutions in the district and drives its credit planning. This produces intensive, area-based development.
• ✗ (a) The scheme is not about big banks opening offices in every district. It allots one lead bank per district to coordinate banking and credit development there.
• ✗ (b) The lead bank acts as a consortium leader among the banks in its district. The scheme is built on coordination, not stiff competition.
• ✗ (d) Deposit mobilisation is not the basic aim. The focus is on developing an adequate banking and credit structure in rural areas through an area approach.

Remember · Lead Bank Scheme (1969), from the Gadgil Study Group and the Nariman Committee: each district gets one lead bank as consortium leader. It follows the 'Area Approach' to rural banking and credit.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 only

A teaser loan charges a low interest rate for the first few years and then resets to a higher rate. Borrowers may not be able to pay the higher instalments, so banks face default risk, a hallmark of subprime-type lending. In India, teaser rates were a feature of housing loans, not loans to new entrepreneurs for factories or exports. Only statement 1 is correct.

• ✓ 1. The RBI flagged that some borrowers may struggle to service the loan once the higher normal rate applies. It also noted that many banks did not assess repayment capacity at that normal rate. This is subprime-type lending and exposes banks to future defaults. The RBI raised standard-asset provisioning on such loans to 2 per cent.
• ✗ 2. The RBI's discussion of teaser rates in India concerns housing loans sanctioned at a low initial rate. Nothing links them to inexperienced entrepreneurs setting up manufacturing or export units.

Remember · Teaser loan means a low initial interest rate that is later reset higher. In India it meant housing loans. The risk is default after the reset, so the RBI raised provisioning on them to 2 per cent (Nov 2010).

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 2 and 3 only

The answer is (b): statements 2 and 3. Capital gains are the profit from holding a capital asset, which means property of almost any kind, and then transferring it at a higher value. Owned property (statement 2) and a painting (statement 3) are such assets, so their appreciation can give rise to capital gains. A rise in the sales of a product is business income, not a gain on a capital asset.

• ✗ 1. Higher sales of a product raise business turnover and profit. These are taxed as business income, because goods held for sale are stock-in-trade, which is excluded from the definition of capital asset. No capital asset is being transferred at a higher value.
• ✓ 2. Property held by its owner is a capital asset, since the definition covers any kind of property held by a person. When its value rises naturally and it is later transferred, the profit is a capital gain.
• ✓ 3. A painting bought as an investment is property held by the buyer, and paintings and works of art are expressly treated as capital assets. If its value rises because it becomes more popular, selling it gives a capital gain.

Remember · Capital gain means profit from transferring a capital asset (property, shares, paintings, jewellery). Business sales and stock-in-trade give business income, not capital gains.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2 and 3 only

Under India's FDI policy, FDI is investment by a person resident outside India in the capital of an Indian company. Unlike portfolio investment, its aim is to obtain a lasting interest and influence over how the company is managed. Subsidiaries of foreign companies, majority foreign equity holdings and companies wholly financed by foreign companies all fit this. Portfolio investment is a separate category, in which investors generally do not expect to influence management. So statements 1, 2 and 3 are correct, and the answer is (d).

• ✓ 1. A subsidiary of a foreign company in India is set up with foreign equity capital and is controlled by the foreign parent. That is a non-resident investing directly in the capital of an Indian company.
• ✓ 2. A majority foreign equity holding is non-resident investment in an Indian company's capital that carries control, so it is FDI. The policy treats an entity as 'owned' by non-residents when more than 50% of its capital is beneficially owned by non-residents.
• ✓ 3. A company financed entirely by foreign companies, such as a wholly owned subsidiary, is built on capital brought in by non-residents who hold full control. It falls within FDI.
• ✗ 4. The FDI policy separates direct investment from portfolio investment. Portfolio investors do not generally expect to influence the management of the enterprise, so portfolio investment is not FDI.

Remember · FDI means non-resident investment in an Indian company's capital that brings lasting interest and influence over management. Portfolio investment (for example, FII buying of shares and bonds) is a separate category of foreign investment.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 2 only

Only statement 2 is correct. NRLM works through the poor's own grassroots institutions, mainly Self-Help Groups, and helps poor households reach self-employment and skilled wage employment. It does not set up industries itself or hand out farm inputs free.

• ✗ 1. NRLM does not build manufacturing industries or agribusiness centres. It helps poor households reach self-employment and wage jobs through their own institutions, credit and skills.
• ✓ 2. The Mission's core strategy is to build strong institutions of the poor, chiefly SHGs and their federations. It supports them with capacity building, a revolving fund, capital subsidy and skill-based employment.
• ✗ 3. The financial support is a revolving fund and capital subsidy to SHGs, plus interest subsidy on bank loans. It is not free supply of seeds, fertilisers, pump-sets or irrigation equipment to farmers.

Remember · NRLM (Aajeevika, 2011) works through SHGs and federations of the poor, with credit, capital support and skilling. It does not give free farm inputs or build factories.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1, 2 and 3 only

Under NRHM, an ASHA is a community health activist. She escorts women to health facilities, counsels them on nutrition and immunisation, and uses the Nischay pregnancy test card. She is not a birth attendant, so conducting deliveries is not her job. That leaves 1, 2 and 3.

• ✓ 1. The NHM guidelines on ASHA say she will escort or accompany pregnant women and children who need treatment or admission to the nearest health facility (PHC/CHC/FRU). Linking pregnant women to facility care, including antenatal check-ups, is part of this role.
• ✓ 2. ASHA Module 6 trains her to use the Nischay home pregnancy test card. It notes the card can be used easily by her to test whether a woman is pregnant.
• ✓ 3. The ASHA's role includes giving the community information on determinants of health such as nutrition. She also counsels women on safe delivery, breastfeeding, complementary feeding and immunisation.
• ✗ 4. ASHA's role is to counsel the mother to deliver at a PHC open 24x7, where doctors and nurses or ANMs conduct the delivery. She does not conduct it herself.
• ✗ (d) This option includes statement 4, which is wrong. ASHA is a facilitator and link worker, not a skilled birth attendant.

Remember · ASHA is the village-level link between community and health system: she escorts, counsels, mobilises and provides basic first-contact care. She does not conduct deliveries; ANMs, nurses and doctors do.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 and 2 only

Janani Suraksha Yojana (JSY) is a safe-motherhood scheme under the National Rural Health Mission, now the National Health Mission. It gives cash assistance to encourage poor women to deliver in health institutions. It does not compensate for wage loss. That is the purpose of the separate maternity benefit scheme: IGMSY at the time, now PMMVY.

• ✓ 1. JSY aims to reduce maternal and neonatal deaths by promoting institutional delivery among poor pregnant women. ASHAs act as the link between these women and government health facilities.
• ✓ 2. JSY is a centrally sponsored scheme that integrates cash assistance with delivery and post-delivery care. The mother receives a cash package for delivering in a health facility, and the ASHA gets a separate package.
• ✗ 3. Partial compensation for wage loss is the aim of the maternity benefit scheme run by the Ministry of Women and Child Development. In 2012 this was the Indira Gandhi Matritva Sahyog Yojana; today it is PMMVY. It is not an aim of JSY.

Remember · JSY (launched 12 April 2005, now under NHM) = cash incentive for institutional delivery, with the ASHA as the link. Wage-loss compensation for pregnancy comes under the maternity benefit scheme (IGMSY, now PMMVY).

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2, 3 and 4

All four can be covered. The ESI Act applies to factories, and Section 1(5) lets State Governments extend it to other establishments. States have extended coverage to hotels, restaurants, road-motor transport undertakings, newspaper establishments and private medical institutions.

• ✓ 1. Hotels and restaurants are among the establishments to which States have extended ESI coverage under Section 1(5).
• ✓ 2. Road-motor transport undertakings are on the list of extended establishments.
• ✓ 3. Newspaper establishments are on the same list.
• ✓ 4. Private medical institutions are also on the list, along with shops and cinemas.

Remember · The ESI Act covers factories, and Section 1(5) lets States extend it to shops, hotels, restaurants, cinemas, road-motor transport undertakings, newspaper establishments and private medical institutions.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 1 and 2 only

The answer is (b): only statements 1 and 2 are correct. The National Water Mission, one of the eight missions under the National Action Plan on Climate Change, aims to meet part of urban water needs through wastewater recycling. It also aims to meet the needs of coastal cities through technologies, such as desalination, that allow the use of ocean water. The Mission makes no commitment to link all Himalayan rivers with peninsular rivers, or to fully reimburse farmers' borewell and pump costs.

• ✓ 1. The Mission aims to make sure that a considerable portion of urban water requirements is supplied by recycling waste water.
• ✓ 2. The Mission seeks to meet the water requirements of coastal cities that lack alternative sources. It plans to do this through new and appropriate technologies, such as low-temperature desalination, that allow the use of ocean water.
• ✗ 3. The Mission's inter-basin integration strategy is aimed particularly at augmenting water by converting surplus flood water into usable water. It does not promise to link all Himalayan rivers with peninsular rivers.
• ✗ 4. The Mission focuses on conserving water, minimising wastage, raising water-use efficiency by 20% and paying attention to over-exploited areas. It contains no promise of complete government reimbursement of farmers' borewell, motor and pump-set costs.

Remember · National Water Mission (NAPCC) goals include a 20% rise in water-use efficiency, wastewater recycling for cities and desalination for coastal cities. They do not include linking all rivers or free borewells.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 3 and 4 only

The DRDA is the district-level agency for the Ministry of Rural Development's anti-poverty programmes. Its job is to bring together different departments and agencies, and to make sure programme funds are used well. It is not a Panchayati Raj body, and it does not run its own poverty-and-malnutrition research.

• ✗ 1. DRDAs are not Panchayati Raj Institutions. The guidelines say the DRDA performs tasks different from those of Panchayati Raj Institutions and line departments.
• ✗ 2. The DRDA's role is to coordinate and oversee anti-poverty programmes and to ensure that their funds are used effectively. Carrying out its own area-specific scientific studies of the causes of poverty and malnutrition is not part of that role.
• ✓ 3. The DRDA's stated objective is to secure inter-sectoral and inter-departmental coordination and cooperation for reducing poverty in the district.
• ✓ 4. The DRDA continues to watch over and ensure effective utilisation of the funds intended for anti-poverty programmes.
• ✗ (c) Option (c), '4 only', leaves out the coordination role in statement 3, which is a core DRDA function.
• ✗ (d) Option (d) includes statements 1 and 2, which wrongly describe DRDAs as Panchayati Raj bodies and as research agencies.

Remember · DRDA is the district agency for the Ministry of Rural Development's anti-poverty programmes. It coordinates agencies and monitors fund use. It is not a Panchayati Raj body, and it is not mainly a research body.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 only

Only statement 1 is correct, so the answer is (a). The MPI is built from household survey data. It records which households are deprived in health, education and standard of living, which includes assets and basic services. It does not use national macro-economic measures such as purchasing power parity, budget deficit or GDP growth.

• ✓ 1. The MPI uses ten indicators in three dimensions. Two indicators cover health and two cover education. Six cover standard of living: electricity, water, sanitation, flooring, cooking fuel and assets. Poverty is identified at the household level.
• ✗ 2. Purchasing power parity is a currency-conversion tool used for income comparisons between countries. It is not an MPI indicator. The MPI is a non-income measure based on household deprivations.
• ✗ 3. Budget deficit and GDP growth are national fiscal and macro-economic figures. None of the ten MPI indicators measures them.

Remember · MPI (OPHI–UNDP, 2010) has 3 dimensions (health, education, standard of living), 10 indicators and household-level deprivations. It uses no national macro data such as GDP growth, PPP or fiscal deficit.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) direction keeping the polestar to his left

The Pole Star appears nearly stationary in the north, so it shows the north direction to an observer in the northern hemisphere. A person facing east has north on his left. To walk east to his village, he should keep the Pole Star to his left.

• ✗ (a) Walking towards the Pole Star means walking north, not east. He would miss the village, which lies to the east.
• ✗ (b) Walking with the Pole Star behind him means walking south, which is the wrong direction.
• ✓ (c) When you face east, north is on your left and south is on your right. Keeping the Pole Star on his left means he is heading east, towards the village.
• ✗ (d) With the Pole Star on his right he would be facing west, the opposite of east.

Remember · The Pole Star (Polaris) shows north, very nearly true north, in the northern hemisphere. Facing east, north is on your left; facing west, it is on your right.

📘 Read it in NCERT: Class 6 Curiosity, Ch 12

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) The Earth’s magnetic field diverts them towards its poles.

The Earth's magnetic field stops these particles. It shields life from harmful particles from space, and charged particles such as the solar wind are steered towards the magnetic poles. Neither the ozone layer nor atmospheric moisture does this.

• ✓ (a) The magnetic field shields the Earth, blocking harmful particles from space. When the solar wind (charged particles from the Sun) reaches the Earth's atmosphere, it is directed towards the magnetic poles. There it meets atmospheric gases and produces auroras instead of reaching the surface.
• ✗ (b) The ozone layer shields the surface from the Sun's ultraviolet radiation. It does not reflect charged particles back into space.
• ✗ (c) Most of the atmosphere's water vapour and clouds lie in the troposphere, the lowest layer. Moisture plays no part in stopping fast-moving charged particles from space.
• ✗ (d) Statement (a) is correct, so 'none of the above' cannot be the answer.

Remember · The Earth's magnetic field, generated in the liquid iron outer core, steers charged particles like the solar wind towards the poles, where they cause auroras. Ozone, by contrast, screens out UV radiation.

📘 Read it in NCERT: Class 8 Curiosity, Ch 4 (practise this chapter) · Class 9 Understanding Society: India and Beyond, Ch 3 (practise this chapter) · Class 10 Science, Ch 13 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1 and 3 only

The atmosphere is warmed mainly from below, by long-wave heat radiated from the Earth's surface. Air higher up is thinner, so it holds and absorbs less of that heat and is cooler. The upper atmosphere has less moisture, not more.

• ✓ 1. Incoming solar radiation passes through the air without heating it much. The ground absorbs it and radiates long-wave heat upwards. So the air near the surface is warmest, and temperature falls as you go up.
• ✗ 2. Water vapour is concentrated near the surface and decreases with altitude. The upper atmosphere is therefore drier, and moisture cannot explain the fall in temperature.
• ✓ 3. Gravity packs air close to the surface, so the lower air is denser. Higher up the air is thin and has fewer molecules to absorb the Earth's outgoing heat, so it stays cooler.

Remember · The atmosphere is heated from below by terrestrial (long-wave) radiation. In the troposphere temperature falls about 6.5 °C per km. Water vapour and air density both decrease with height.

📘 Read it in NCERT: Class 11 Fundamentals of Physical Geography, Ch 8 (practise this chapter) · Class 11 Fundamentals of Physical Geography, Ch 7 (practise this chapter) · Class 11 Fundamentals of Physical Geography, Ch 9 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) A definite dry and wet season

The tropical savannah climate is the Koeppen 'Aw' type, called tropical wet and dry. Its defining feature is a distinct wet season and a distinct dry season. The dry season is long and the drought is severe.

• ✗ (a) Rainfall throughout the year, with no dry season, describes the tropical wet (Af) climate of the equatorial rainforests. It does not describe the savannah.
• ✗ (b) Savannah rain falls mainly in the hot, high-sun season, which is summer. Winter is the dry season.
• ✗ (c) The savannah's dry season is not extremely short. Compared with the wetter tropical climates, its wet season is shorter and its dry season longer, with more severe drought.
• ✓ (d) Savannah climate has a clear wet season and a clear dry season, which is why it is called tropical wet and dry. The savannah is a tropical grassland with scattered trees and seasonal rainfall.

Remember · Savannah = Koeppen Aw (tropical wet and dry): distinct wet and dry seasons, rain mostly in summer, long dry winter, grassland with scattered trees.

📘 Read it in NCERT: Class 11 Fundamentals of Physical Geography, Ch 11 (practise this chapter) · Class 11 Fundamentals of Physical Geography, Ch 11 (practise this chapter) · Class 8 Exploring Society: India and Beyond (Part 2), Ch 1 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 1, 2 and 3

Ocean currents are driven by winds, which come from air-pressure differences. The Earth's rotation (the Coriolis force) deflects them, and density differences in sea water (temperature and salinity) move water vertically and horizontally. The Earth's revolution round the Sun is not a driver of currents.

• ✓ 1. The Earth's rotation produces the Coriolis force. This deflects moving water and, together with the winds, helps shape the large circular gyres of the ocean basins.
• ✓ 2. Winds, which arise from air-pressure differences, are the main driver of surface currents. Their frictional drag pulls the surface water along.
• ✓ 3. Differences in temperature and salinity change the density of sea water. Dense water sinks and spreads, which drives deep (thermohaline) circulation.
• ✗ 4. The Earth's revolution round the Sun is linked to the seasons. It is not a force that moves ocean water.
• ✗ (d) This option drops rotation (factor 1) and wrongly includes revolution (factor 4).

Remember · Ocean currents come from wind, Earth's rotation (Coriolis force) and density differences from temperature and salinity. Revolution of the Earth is not a cause.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1, 2 and 3 only

Statements 1, 2 and 3 are correct, so the answer is (a). Ocean acidification lowers the carbonate available to organisms that build calcium carbonate shells and skeletons. This harms calcifying plankton, corals and the calcifying larvae of shell-building animals. Statement 4 is not an established effect: the only link to clouds runs indirectly through the sulphur gas DMS released by marine plankton, and IPCC describes that sensitivity to acidification as uncertain.

• ✓ 1. Calcifying plankton such as coccolithophores and foraminifera build calcium carbonate shells. They are among the groups considered most at risk from ocean acidification.
• ✓ 2. Corals build their skeletons from calcium carbonate. Species that build shells or skeletons this way are particularly vulnerable to acidification.
• ✓ 3. Many shell-building animals pass through a planktonic larval stage. Near-future CO2 levels are generally harmful to calcifying larvae such as mollusc veligers and sea-urchin larvae, which threatens the survival of those animals.
• ✗ 4. Acidification has no direct effect on cloud seeding or cloud formation. The only proposed route is indirect, via DMS gas from marine plankton, and IPCC states that this sensitivity to ocean acidification remains uncertain.
• ✗ (d) Option (d) includes statement 4, which rests on an uncertain, indirect feedback rather than an established impact.
• ✗ (b) Option (b) wrongly drops statements 1 and 3, even though calcifying plankton and calcifying larvae are among the most vulnerable groups.

Remember · Ocean acidification cuts carbonate availability and hurts calcifiers: corals, calcifying plankton and calcifying larvae. The DMS–cloud link is an uncertain, indirect feedback, not an established impact.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) Rearing of animals and cultivation of crops together.

Mixed farming means growing crops and rearing animals together on the same farm. Fodder crops are an important component, and equal emphasis is laid on crop cultivation and animal husbandry.

• ✓ (c) This is the defining feature of mixed farming. Crop cultivation and animal husbandry get equal emphasis, and fodder crops are grown to feed the livestock.
• ✗ (a) Growing both cash crops and food crops concerns only the choice of crops. It has no animal-rearing element, so it does not describe mixed farming.
• ✗ (b) Growing two or more crops in the same field is mixed cropping (or intercropping). Mixed farming is different because it combines crops with livestock.
• ✗ (d) Option (c) correctly states the chief characteristic, so 'none of the above' is wrong.

Remember · Mixed farming = crops + livestock on the same farm, with equal emphasis on both. Mixed cropping = several crops in one field. Do not confuse the two.

📘 Read it in NCERT: Class 12 Fundamentals of Human Geography, Ch 4 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2 and 3

All three crops are grown mostly on rain-fed land. Groundnut is largely a rainfed kharif crop of drylands, sesamum is grown mainly under rainfed and low-input conditions, and pearl millet (bajra) is largely rainfed in the kharif season.

• ✓ 1. NCERT describes groundnut as largely a rainfed kharif crop of drylands. In southern India it is also grown in the rabi season.
• ✓ 2. ICAR describes sesame (sesamum, til) as an important oilseed crop in India, predominantly cultivated under rainfed and low-input conditions.
• ✓ 3. Pearl millet (bajra) is a hardy crop of hot, dry north-western and western India that resists dry spells and drought. In the kharif season it is largely grown as a rainfed crop. The exceptions are some areas of eastern Rajasthan, southern Haryana and western Uttar Pradesh.
• ✗ (a) This leaves out pearl millet, which is a rainfed crop of dry regions.
• ✗ (b) This leaves out groundnut, which is a rainfed kharif crop of drylands.

Remember · Groundnut, sesamum and bajra are all dryland crops grown predominantly under rainfed conditions.

📘 Read it in NCERT: Class 12 India: People and Economy, Ch 3 (practise this chapter) · Class 12 India: People and Economy, Ch 3 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2, 3 and 4

All four features are evidence, so the answer is (d). The Himalayas are young fold mountains that are still rising. They form a series of parallel ranges with very steep slopes, and fast youthful rivers cut deep gorges and take sharp U-turns through them.

• ✓ 1. Fast-flowing rivers in their youthful stage cut deep gorges and V-shaped valleys. They erode at the same time as the Himalayas are being uplifted. Such landforms show that the mountains are young.
• ✓ 2. Himalayan rivers take sharp bends and U-turns. For example, the Brahmaputra turns sharply around Namcha Barwa before entering India through a gorge. Such courses are a drainage sign of a young range still under uplift.
• ✓ 3. The Himalayas consist of a series of parallel mountain ranges, including the Greater Himalaya, the Lesser Himalaya and the Shiwaliks. This is the pattern of crustal folding at a plate collision.
• ✓ 4. The Himalayas are tectonically active and largely made of sedimentary and loosely consolidated material. Their slopes are very steep, so debris avalanches and landslides are frequent.

Remember · Young fold mountains like the Himalayas show parallel ranges, steep landslide-prone slopes, and youthful rivers that cut deep gorges and take sharp U-turns. All four features count.

📘 Read it in NCERT: Class 11 India: Physical Environment, Ch 2 (practise this chapter) · Class 11 India: Physical Environment, Ch 2 (practise this chapter) · Class 11 India: Physical Environment, Ch 3 (practise this chapter) · Class 11 Fundamentals of Physical Geography, Ch 5 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) Both 1 and 2

Both statements are correct. The monsoon reaches the south first and the north-west last, and it withdraws from the north-west first, so its stay shortens northwards. Across the northern plains, rainfall falls steadily from the wet east (West Bengal, Assam) to the drier west (Punjab, Haryana and on into Rajasthan).

• ✓ 1. The south-west monsoon sets in over the Kerala coast by about 1 June and covers the whole country only by mid-July. Its withdrawal begins from the north-western states in September. So the monsoon season is longest in the south and shortest in the north-west.
• ✓ 2. In the northern plains, rainfall is highest in the east and decreases towards the west. The moisture-bearing Bay of Bengal branch loses water as it moves up the plains away from the sea. The national extremes show the same east–west contrast: over 400 cm in Meghalaya against under 10 cm in the western deserts.

Remember · Monsoon duration falls from south to north. Rainfall in the northern plains falls from east to west, from Bengal towards Punjab and Rajasthan, as the distance from the Bay of Bengal grows.

📘 Read it in NCERT: Class 11 India: Physical Environment, Ch 4 (practise this chapter) · Class 11 India: Physical Environment, Ch 4 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) Arunachal Pradesh

Arunachal Pradesh is the answer. It is the only option with more than 80% of its area under forest (80.39%). Its latitudes (26°28'N to 29°30'N) fall within Rajasthan's span, which reaches 30°11'N in the north. Assam, Himachal Pradesh and Uttarakhand all have far less forest cover.

• ✓ (a) Forest cover is 80.39% of the State's geographical area, which is over 80%. The State lies between 26°28'N and 29°30'N. Rajasthan extends up to 30°11'N, so Arunachal Pradesh shares latitudes with northern Rajasthan.
• ✗ (b) Assam's forest cover is only about 35% (35.28%) of its area, far below the 80% required.
• ✗ (c) Himachal Pradesh has only about a quarter of its area under forest cover, far below the 80% required.
• ✗ (d) Uttarakhand has about 45% forest cover (45.44%), far below the 80% required.

Remember · Arunachal Pradesh has over 80% of its area under forest, among the highest in India. It spans 26°28'N to 29°30'N, overlapping Rajasthan's latitudes, which run up to 30°11'N.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 only

Only statement 1 is correct. In the National Wetland Inventory by ISRO's Space Applications Centre, Gujarat has the largest share of India's wetland area, over a fifth of the national total. Inland wetlands make up about 69% of the national wetland area, so coastal wetlands are far smaller.

• ✓ 1. Gujarat recorded about 34.5 lakh ha of wetlands in 2006-07, which is 22.49% of the national wetland area. In 2017-18 it had about 35 lakh ha (21.9%). This is the largest state share in India.
• ✗ 2. Inland wetlands cover about 1.06 crore ha, or 69.23% of India's wetland area. That leaves coastal wetlands well under a third of the total. Natural coastal wetlands, for example, cover about 37 lakh ha (24.27%). Inland wetlands are therefore far larger than coastal wetlands.
• ✗ c/d Options (c) and (d) fail because statement 2 is wrong. Option (b) fails because statement 1 is right.

Remember · In the National Wetland Inventory (ISRO-SAC), inland wetlands are about 69% of India's wetland area. Gujarat has the largest state share, about 22%.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) Nutrient cycling and crop pollination

The Millennium Ecosystem Assessment names nutrient cycling as its standard example of a supporting service. Options (a), (b) and (d) do not describe supporting services, so (c) is the only option that includes one.

• ✗ (a) Food and water are provisioning services, meaning products obtained directly from ecosystems.
• ✗ (b) Regulation of climate, floods and disease belongs to regulating services.
• ✓ (c) Nutrient cycling is the Assessment's main example of a supporting service. These services are necessary for producing all other ecosystem services. Crop pollination is listed under regulating services, so the option is imperfect, but it is the only one that includes a supporting service.
• ✗ (d) Maintenance of diversity is not one of the Assessment's named supporting services. Those are soil formation, photosynthesis and nutrient cycling.

Remember · MA categories: provisioning (food, water), regulating (climate, flood, disease, pollination), cultural (recreational, spiritual) and supporting (nutrient cycling, soil formation, photosynthesis). Supporting services underpin all the others.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 and 2 only

Statements 1 and 2 are correct, so the answer is (a). Phytoplankton are the ocean's main producers and the main route by which carbon dioxide moves from the air into the sea. Losing them would damage both the carbon sink and the food chains. Ocean water density depends chiefly on temperature and salinity, not on phytoplankton.

• ✓ 1. Phytoplankton take in carbon dioxide during photosynthesis, and some of that carbon sinks to the deep ocean. They are responsible for most of the transfer of CO2 from the atmosphere to the ocean. Without them, the ocean's role as a carbon sink would weaken.
• ✓ 2. Phytoplankton are producers in aquatic ecosystems and form the base of ocean food chains. They feed zooplankton, which in turn feed small fish and larger animals. If phytoplankton were destroyed, every higher trophic level would be affected.
• ✗ 3. The density of sea water is closely linked to its temperature and salinity, which chiefly determine it. Phytoplankton do not control these factors, so their loss would not cause a drastic fall in density.

Remember · Phytoplankton are the ocean's primary producers and a key part of its carbon pump. Sea-water density is set chiefly by temperature and salinity, not by living organisms.

📘 Read it in NCERT: Class 12 Biology, Ch 12 (practise this chapter) · Class 11 Fundamentals of Physical Geography, Ch 12 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1 and 3 only

The NBA, set up under the Biological Diversity Act, 2002, regulates access to India's biological resources and must approve any IPR application based on them. It can also oppose IPRs granted abroad on Indian resources, which is how it checks biopiracy. It does not supervise GM crop research. That is handled under the 1989 Rules framed under the Environment (Protection) Act, 1986, through the RCGM and the GEAC.

• ✓ 1. Under Section 18(4) of the Biological Diversity Act, the NBA can act for the Central Government to oppose IPRs granted outside India on biological resources obtained from India or knowledge associated with them. That is its anti-biopiracy role. Section 3 also requires foreign persons and entities to get its approval before obtaining Indian biological resources for research or commercial use.
• ✗ 2. GM organisms are regulated under the 1989 Rules framed under the Environment (Protection) Act, 1986. Research is overseen by the Review Committee on Genetic Manipulation, and environmental release is appraised by the Genetic Engineering Appraisal Committee (GEAC). The NBA has no such supervisory role.
• ✓ 3. Section 6 says no one may apply for an IPR, in or outside India, on an invention based on research or information on a biological resource obtained from India without the NBA's previous approval. For patents, the Act then allowed the approval to be taken after acceptance but before sealing of the patent.

Remember · NBA (Biological Diversity Act, 2002) regulates access to biological resources, approves IPR applications on them (Sec 6) and opposes such IPRs abroad (Sec 18(4)). GM crops are regulated under the EPA 1986 Rules (RCGM, GEAC), not by the NBA.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1, 2 and 3

All three practices help keep carbon in the soil. Zero tillage avoids the oxidation of soil carbon that ploughing causes. Relay cropping keeps living cover and roots in the field for longer, which adds biomass. Contour bunds hold back runoff and soil, so the carbon in the topsoil is not washed away.

• ✓ 1. Contour bunds slow runoff and cut soil loss on slopes. Erosion directly reduces soil carbon stocks, so checking erosion keeps carbon stored in the soil.
• ✓ 2. Relay cropping is a form of intercropping in which the next crop is sown before the earlier one is harvested. This keeps the land under crop cover for longer. It adds biomass above and below ground, which improves carbon sequestration.
• ✓ 3. Zero tillage leaves the soil undisturbed, so less organic matter is oxidised and lost as CO2. Soil carbon has been found to rise by 10–30 percent when conventional tillage is replaced by no-till.
• ✗ (b) This option credits only zero tillage. Contour bunding (by preventing carbon loss through erosion) and relay cropping (by adding biomass) also help store carbon in the soil.
• ✗ (d) This option says that none of the practices helps. That is wrong, because each of the three conserves or adds soil carbon.

Remember · Soil carbon is built by minimum disturbance (zero tillage), more biomass and continuous cover (relay or intercropping), and erosion control (bunds, contour farming).

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1, 3 and 4 only

Only statements 1, 3 and 4 are correct, so the answer is (c). CFCs were used as blowing agents for plastic foams, as solvents for cleaning electronic components, and as aerosol propellants, as well as refrigerants. They were not used in making tubeless tyres.

• ✓ 1. CFCs, mainly CFC-11, were used as blowing agents to produce plastic foams such as insulating polyurethane foam. Both India's Ozone Cell and the UNEP Ozone Secretariat name foam blowing as a CFC use.
• ✗ 2. The CFC uses named by India's Ozone Cell are refrigeration, aerosol propellants, electronic cleaning solvents and foam blowing agents. Tubeless tyre manufacture is not a CFC application.
• ✓ 3. CFCs were used extensively as electronic cleaning solvents; CFC-113 was the best-known solvent CFC. India's Ozone Cell explicitly lists electronic cleaning solvents among CFC uses.
• ✓ 4. CFCs such as CFC-11 and CFC-12 were widely used as propellants, the pressurizing agents in aerosol cans. The UNEP Ozone Secretariat calls aerosol propellant a predominant use of CFC-11.
• ✓ (c) Statements 1, 3 and 4 together give option (c). Options (a) and (d) wrongly include tubeless tyres. Option (b) leaves out the foam and solvent uses.

Remember · CFC uses: refrigerants, aerosol propellants, foam-blowing agents, and solvents for cleaning electronics. Tyres are not a CFC use.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) the infrared part of the solar radiation

Carbon dioxide is a greenhouse gas. Incoming sunlight passes through it, but it absorbs the infrared (long-wave) heat that the warmed Earth radiates back. This traps heat in the atmosphere, so more CO2 means a warmer atmosphere.

• ✓ (d) The Earth's surface absorbs sunlight and re-emits that energy as infrared heat. CO2 absorbs this outgoing infrared and re-radiates part of it back towards the surface, slowing heat loss to space and warming the lower atmosphere. The infrared is ultimately the Sun's energy in another form, which is why this option is the right one.
• ✗ (a) CO2 does not absorb water vapour. Water vapour is a separate greenhouse gas that absorbs heat on its own.
• ✗ (b) The heating effect of CO2 does not come from absorbing ultraviolet light. The greenhouse effect works on outgoing long-wave (infrared) radiation.
• ✗ (c) CO2 is transparent to incoming solar radiation, so it does not absorb all of it. It is opaque to the outgoing terrestrial (infrared) radiation.

Remember · CO2 is transparent to incoming short-wave sunlight but absorbs outgoing long-wave (infrared) terrestrial radiation. This is the core of the greenhouse effect.

📘 Read it in NCERT: Class 11 Fundamentals of Physical Geography, Ch 7 (practise this chapter) · Class 11 Fundamentals of Physical Geography, Ch 11 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 only

The preamble of the National Green Tribunal Act, 2010 itself says the right to a healthy environment has been construed as part of the right to life under Article 21. It does not mention Article 275(1) (grants for Scheduled Areas) or Article 243A (Gram Sabha), which concern unrelated subjects.

• ✓ 1. The Act's preamble records that, in judicial pronouncements in India, the right to a healthy environment has been construed as a part of the right to life under Article 21 of the Constitution. This is the constitutional basis the Act itself invokes.
• ✗ 2. Article 275(1) deals with grants-in-aid from the Union to States, including for tribal welfare schemes and for raising the level of administration in Scheduled Areas. It has no link to environmental adjudication and is not cited in the NGT Act.
• ✗ 3. Article 243A provides that a Gram Sabha may exercise powers and functions at the village level as the State Legislature provides by law. The NGT Act does not rest on it. Among constitutional provisions, the Act's preamble cites only Article 21.

Remember · The NGT Act, 2010 preamble cites the Stockholm (1972) and Rio (1992) conferences and Article 21, the right to a healthy environment as part of the right to life.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 1, 3 and 4 only

Bandipur (Karnataka), Manas (Assam) and Sundarban (West Bengal) are tiger reserves; all three were among the original reserves set up under Project Tiger in 1973. Bhitarkanika in Odisha is a wildlife sanctuary and national park, not a tiger reserve. Odisha's tiger reserves are Similipal and Satkosia, so the answer is (b).

• ✓ 1. Bandipur in Karnataka is a tiger reserve. It was one of the original reserves under Project Tiger in 1973.
• ✗ 2. Bhitarkanika is a mangrove wildlife sanctuary and national park in Odisha, known for its saltwater crocodiles. It is not a tiger reserve: the NTCA lists only Satkosia and Similipal as Odisha's tiger reserves.
• ✓ 3. Manas in Assam is a tiger reserve and was one of the original Project Tiger reserves of 1973. The NTCA lists it among Assam's tiger reserves, along with Kaziranga.
• ✓ 4. Sundarban in West Bengal is a tiger reserve, one of the original Project Tiger reserves of 1973. It is the mangrove tiger reserve of the Ganga–Brahmaputra delta.

Remember · Bhitarkanika (Odisha) is a crocodile and mangrove sanctuary/national park, not a tiger reserve. Odisha's tiger reserves are Similipal and Satkosia.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) National Parks

A National Park is the most strictly protected category under the Wild Life (Protection) Act, 1972. All rights in the land must vest in the State Government before the area is finally declared a National Park, and no livestock grazing is permitted. A sanctuary, by contrast, can meet the bona fide needs of people living in and around it, and grazing there may be permitted under regulation. So National Parks are the category where local people cannot collect and use biomass.

• ✓ (b) Under s.35(4), the State Government declares an area a National Park only after all rights in respect of the lands proposed for inclusion have vested in it. Section 35(7) bars grazing of any livestock in a National Park. Local people therefore retain no rights there to collect biomass such as fodder, fuel or forest produce.
• ✗ (d) Section 29 provides that forest produce removed from a sanctuary may be used for the personal bona fide needs of people living in and around it, though not for commercial purposes. Under s.33(d), the Chief Wild Life Warden may regulate, control or prohibit grazing in a sanctuary, so grazing can be allowed. The Explanation to s.29 states that grazing permitted under s.33(d) is not a prohibited act.
• ✗ (a) A Biosphere Reserve is a zoned landscape with core, buffer and transition areas. Its buffer and transition areas allow regulated, sustainable use by local communities, so it does not impose a National Park's bar on local use.
• ✗ (c) The Ramsar Convention promotes the 'wise use' of wetlands, which includes sustainable use by people. Ramsar designation does not by itself prohibit local people from using biomass.

Remember · National Park: rights vested in the State, no grazing. Wildlife Sanctuary: bona fide use of forest produce by nearby people is allowed, and grazing can be permitted under the Wild Life (Protection) Act, 1972.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) a drug used by cattle owners for treating their discased cattle

Vultures died after feeding on carcasses of cattle treated with the anti-inflammatory painkiller diclofenac. The drug is used to treat cattle but causes kidney failure in vultures. Nesting sites, food scarcity and disease were not the cause of the crash.

• ✗ (a) The steep decline was traced to diclofenac in cattle carcasses, which is identified as the chief cause. Invasive species destroying nesting sites was not the cause.
• ✓ (b) Cattle owners treated sick animals with diclofenac, a commonly used anti-inflammatory drug. Vultures that fed on the carcasses of these animals were poisoned and died, which led India to ban the veterinary use of diclofenac.
• ✗ (c) Food was not scarce. Cattle carcasses were still available, but those from animals treated with diclofenac were toxic to the vultures that ate them.
• ✗ (d) The deaths were caused by drug poisoning, not by an infectious disease. Diclofenac causes kidney failure and visceral gout in vultures.

Remember · Diclofenac, a veterinary anti-inflammatory drug given to cattle, caused kidney failure in vultures that fed on the carcasses. Its veterinary use was banned in India, and meloxicam is the vulture-safe alternative.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2 and 3

Many flowering plants depend on animals to carry pollen. Bats, bees and birds are all common pollinating agents, so all three are correct.

• ✓ 1. Bats are pollinators, mainly of night-blooming flowers. They are among the common animal pollinating agents.
• ✓ 2. Bees are common pollinating agents. Among animals, insects, particularly bees, are the dominant biotic pollinators.
• ✓ 3. Birds such as sunbirds and hummingbirds pollinate flowers and are among the common pollinating agents.

Remember · Pollinating agents are either abiotic (wind, water) or biotic. Biotic agents include bees, butterflies, flies, beetles, wasps, ants, moths, birds such as sunbirds and hummingbirds, and bats. Bees are the dominant biotic pollinators.

📘 Read it in NCERT: Class 12 Biology, Ch 1 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1 and 3 only

Answer (c), statements 1 and 3 only. Sea buckthorn is a hardy, nitrogen-fixing shrub found in India's cold Himalayan and Trans-Himalayan deserts. Its extensive roots bind soil and check erosion, and its berries are nutritious. It is valued for its berries and soil conservation, not for biodiesel or timber.

• ✓ 1. The plant develops extensive root systems that hold the soil together and prevent erosion, and it fixes nitrogen. It is drought resistant and has been widely planted for soil conservation and site rehabilitation. This makes it useful for stabilising fragile, desertifying land.
• ✗ 2. Sea buckthorn is grown for its berries and for ecological restoration, not as a biodiesel crop. India's biodiesel efforts centred on plants such as jatropha and pongamia.
• ✓ 3. Its berries are highly nutritious and especially rich in vitamin C. The plant withstands cold weather and extreme temperatures from -43°C to +40°C, so it is well adapted to cold, high-altitude areas such as Ladakh and Lahaul-Spiti.
• ✗ 4. It is a thorny shrub or small tree, not a timber species. Its commercial value comes from berry-based products, not from its wood.

Remember · Sea buckthorn (marketed as 'Leh berry') is a nitrogen-fixing, cold-hardy shrub of the high Himalaya. It is prized for vitamin-rich berries and for checking soil erosion, not for timber or biodiesel.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) Great Indian Bustard, Musk Deer, Red Panda and Asiatic Wild Ass

Option (a) is the only group in which every animal was a threatened species in 2012. The Great Indian Bustard is Critically Endangered. Musk deer and the Asiatic wild ass were listed Endangered by IUCN at the time, and NCERT describes the red panda as an endangered species. Each of the other three groups contains a common Least Concern animal, the cheetal or the rhesus monkey.

• ✓ (a) The Great Indian Bustard is Critically Endangered. Musk deer are threatened; the Alpine musk deer, for example, is listed Endangered. The Asiatic wild ass was listed Endangered by IUCN in 2012, under its 2008 assessment. NCERT labels the red panda an endangered species. No animal in this group is of Least Concern.
• ✗ (b) The cheetal (chital) is listed by IUCN as Least Concern. So the group cannot be called endangered, even though the Great Indian Bustard in it is Critically Endangered.
• ✗ (c) The rhesus monkey is listed as Least Concern, and the Sarus crane is Vulnerable, not Endangered. The group is therefore not an endangered group.
• ✗ (d) Only the lion-tailed macaque (Endangered) fits. The cheetal is Least Concern, so the group as a whole does not qualify.

Remember · Great Indian Bustard is Critically Endangered. In 2012, musk deer, the lion-tailed macaque and the Asiatic wild ass were Endangered. The cheetal and rhesus monkey are Least Concern, so they are the odd ones out.

📘 Read it in NCERT: Class 11 Fundamentals of Physical Geography, Ch 14 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) Oryx is adapted to live in hot and arid areas whereas Chiru is adapted to live in steppes and semi-desert areas of cold high mountains.

The Oryx is a desert antelope built for extremely arid, hot environments. The Chiru (Tibetan antelope) lives on the cold, high-altitude steppes of the Tibetan Plateau. Statement (a) states this difference correctly, and (b) and (c) are factually wrong.

• ✓ (a) The Arabian Oryx is uniquely adapted to living in extremely arid environments. The Chiru is endemic to the Tibetan Plateau. It lives on alpine and desert steppe at 3,250–5,500 m, a bitterly cold high-mountain habitat.
• ✗ (b) Neither animal is poached for the product named. Chiru is poached for its fine underfur, shahtoosh, used to make luxury shawls. Musk comes from the musk deer. Antelopes such as the Oryx carry horns, not antlers.
• ✗ (c) Chiru is a Tibetan Plateau species. In India it is found only in the cold high-altitude area of Ladakh, not in north-east India. Oryx species live in the deserts of Arabia and Africa and do not occur wild in western India.
• ✗ (d) Statement (a) is correct, so 'none of the above' cannot be right.

Remember · Oryx = hot-desert antelope of Arabia and Africa. Chiru = Tibetan antelope of cold high-altitude steppe (Ladakh in India), poached for shahtoosh wool. Musk comes from the musk deer, and antelopes have horns, not antlers.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 1, 3 and 4 only

The black-necked crane, flying squirrels and the snow leopard all occur naturally in India. The cheetah does not: it was declared extinct in India in 1952, so no wild population existed in 2012.

• ✓ 1. The black-necked crane breeds in Ladakh, where a Wildlife Institute of India survey in 2016-17 counted about 66-69 birds. A small number also winter in Arunachal Pradesh. It is a Schedule I species under the Wild Life (Protection) Act, 1972.
• ✗ 2. The cheetah was declared extinct from India in 1952. Cheetahs were brought in from Namibia only in September 2022, well after this 2012 exam.
• ✓ 3. Flying squirrels are native to India; for example, the giant flying squirrels of the genus Petaurista. The Wild Life (Protection) Act schedules list flying squirrels, including all species of Petaurista.
• ✓ 4. The snow leopard lives in the trans-Himalayan region: Ladakh, J&K, Himachal Pradesh, Uttarakhand, Sikkim and Arunachal Pradesh.
• • Since then Since 2022, cheetahs have been introduced into Kuno National Park under Project Cheetah. These are translocated animals, not a surviving natural population, and the answer for 2012 is unchanged.

Remember · The cheetah is the only large cat declared extinct in India (1952). The snow leopard, black-necked crane and flying squirrels are all native to India.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1, 2 and 3 only

Global warming, habitat fragmentation and invasive alien species are all established causes of biodiversity loss. Promoting vegetarianism is a dietary choice and is not one of the drivers of biodiversity decline.

• ✓ 1. Climate change has altered marine, terrestrial and freshwater ecosystems around the world. It plays an increasingly important role in the decline of biodiversity.
• ✓ 2. NCERT lists habitat loss and fragmentation as the most important cause driving animals and plants to extinction. It is the first of the four causes called the 'Evil Quartet'.
• ✓ 3. Some alien species, whether introduced deliberately or by accident, turn invasive and cause decline or extinction of native species. NCERT's example is the Nile perch in Lake Victoria.
• ✗ 4. The recognised causes are habitat loss, overexploitation, alien species invasions and co-extinctions. A dietary preference like vegetarianism is not among them.

Remember · Evil Quartet of biodiversity loss: habitat loss and fragmentation, overexploitation, alien species invasions, co-extinctions. Climate change is an added, growing threat. Vegetarianism is not a threat.

📘 Read it in NCERT: Class 12 Biology, Ch 13 (practise this chapter) · Class 12 Biology, Ch 13 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 3 and 4 only

Opposition to Bt brinjal rested on two worries: food safety, and gene flow harming brinjal's genetic diversity in India, its centre of origin. Statements 1 and 2 are factually wrong. The Bt gene comes from the soil bacterium Bacillus thuringiensis, not a fungus, and Bt brinjal does not carry a terminator gene.

• ✗ 1. The cry1Ac gene in Bt brinjal was taken from the bacterium Bacillus thuringiensis, not from a fungus. It makes an insecticidal protein that protects the crop against the fruit and shoot borer.
• ✗ 2. A terminator gene blocks a genetically altered seed from germinating after one season. Bt brinjal's added trait is the cry1Ac insecticidal protein, not a terminator gene. So terminator seeds were not a reason for the resistance.
• ✓ 3. A main objection was the fear that eating Bt brinjal could harm human health, for example through toxicity or allergic reactions.
• ✓ 4. Critics warned that genes could flow from Bt brinjal to local varieties and wild relatives. This mattered especially because India is the centre of origin of brinjal. The expert review treated the impact of gene flow on brinjal's genetic diversity as an environmental-safety issue.

Remember · Bt toxin (cry) genes come from the soil bacterium Bacillus thuringiensis. Bt brinjal opposition was about health and biodiversity, not terminator seeds.

📘 Read it in NCERT: Class 12 Biology, Ch 10 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1, 2 and 4 only

Genetic engineering has produced crops that tolerate drought, carry more nutrients (e.g. Vitamin A-enriched golden rice) and last longer after harvest (e.g. the delayed-ripening Flavr Savr tomato). Growing plants and carrying out photosynthesis in spaceships and space stations is not one of the established aims of crop genetic engineering. So 1, 2 and 4 are correct.

• ✓ 1. GM crops have been made more tolerant to abiotic stresses such as cold, drought, salt and heat.
• ✓ 2. Enhancing the nutritional value of food is a stated benefit of GM crops. Golden rice, enriched with Vitamin A, is the standard example.
• ✗ 3. Enabling plants to grow and photosynthesise in spaceships or space stations is not among the recognised aims of crop genetic engineering. Those aims are pest resistance, stress tolerance, nutrition and reduced post-harvest losses.
• ✓ 4. The Flavr Savr tomato was genetically modified to delay ripening, which gave it a longer shelf life. Reducing post-harvest losses is also a listed benefit of GM crops.

Remember · GM crop traits: pest resistance, abiotic stress tolerance (drought, salt, cold, heat), better nutrition (golden rice), and longer shelf life with fewer post-harvest losses (Flavr Savr). Growing plants in space stations is not one of them.

📘 Read it in NCERT: Class 12 Biology, Ch 10 (practise this chapter) · Class 12 Biology, Ch 10 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2 and 3

Biopesticides come from living organisms or their natural products. Bacteria (Bacillus thuringiensis), fungi (Trichoderma) and flowering plants (neem, Azadirachta indica) all supply them, so all three kinds qualify.

• ✓ 1. Bacillus thuringiensis (Bt) is a bacterium. Its dried spores are sprayed on crops to kill insect larvae. Its toxin gene is also placed in crops such as Bt cotton.
• ✓ 2. Trichoderma species are free-living soil fungi. They are used as biocontrol agents against several plant pathogens. Some fungi also kill insects or weeds.
• ✓ 3. Neem (Azadirachta indica) is a flowering tree. Oil pressed from its seeds is registered as a biopesticide, and plant extracts are another type of biopesticide.

Remember · Biopesticides include microbial agents (Bt bacterium, Trichoderma fungus, baculovirus) and plant-derived products (neem). Bt cotton is a plant carrying a bacterial gene.

📘 Read it in NCERT: Class 12 Biology, Ch 8 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 only

UV radiation is a disinfectant. It damages the genetic material of microbes so they cannot multiply or infect. It is a purely physical treatment. It does not remove odours, and it does not settle or filter out particles. The water must already be clear for UV to work well. Only statement 1 is correct.

• ✓ 1. UV light disinfects water by inactivating harmful microorganisms such as bacteria, protozoa and viruses. This is the main reason UV units are fitted in water purifiers.
• ✗ 2. UV only inactivates microbes. Taste- and odour-causing compounds need other treatment, such as oxidation with chemical agents or activated carbon. The word 'all' also makes the claim too strong.
• ✗ 3. UV does not cause sedimentation or remove turbidity. Turbid water actually reduces UV efficiency, because particles shield microbes from the light. So water is filtered or settled before the UV stage.
• ✗ (c) This option is tempting because statement 1 is right. But statement 3 confuses disinfection with clarification (coagulation, sedimentation and filtration).

Remember · UV is only a disinfectant: it inactivates microbes and leaves no residual effect. It cannot remove turbidity, odour or dissolved impurities, so clear, pre-filtered water is needed.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 2 and 3 only

Stem cells are not limited to mammals. Insects such as Drosophila and plants such as Arabidopsis also have them. Stem cells are used in drug discovery and toxicity screening, and in therapies such as bone-marrow (haematopoietic) stem cell transplants. So only statements 2 and 3 are correct.

• ✗ 1. Stem cells occur in other animals, such as the fruit fly Drosophila, which has germ-line stem cells. They also occur in plants, where the shoot meristem holds stem cells. They are not confined to mammals.
• ✓ 2. Cell culture systems derived from stem cells are important for drug discovery and toxicity screening, as noted in India's National Guidelines for Stem Cell Research. So stem cells can be used to screen new drugs.
• ✓ 3. Stem cells are used in therapy. In a bone marrow transplant, stem cells from a healthy person are given to patients with blood cancers such as leukaemia, or with disorders such as thalassaemia.

Remember · Stem cells are found in plants and in many animals (e.g., Drosophila), not only mammals. Their uses include therapy (bone-marrow transplant), drug discovery and toxicity screening.

📘 Read it in NCERT: Class 9 Exploration, Ch 3 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 2 and 3 only

Answer (b): 2 and 3 only. Anti-helium-4 was made by the STAR experiment at Brookhaven's RHIC collider. Its value lies in basic physics: it helps the search for antimatter stars and galaxies, and the study of why the universe is made of matter. It has no use in mineral or oil exploration.

• ✗ 1. Creating anti-helium nuclei in a particle collider is fundamental research into matter and antimatter. Such fleeting antinuclei have no application in prospecting for minerals or oil.
• ✓ 2. Producing anti-helium-4 in the laboratory informs space searches such as the AMS experiment. A detection of antihelium-4 in space could indicate large quantities of antimatter segregated from matter, such as antimatter stars or galaxies.
• ✓ 3. Matter and antimatter are understood to have been created in equal amounts at the Big Bang, yet the universe appears to be made entirely of matter. RHIC's collisions recreate conditions of the early universe, so antimatter studies there help in understanding how the universe evolved.

Remember · Antimatter research, such as anti-helium-4 at RHIC (Brookhaven, 2011), bears on cosmology: the matter–antimatter imbalance and the search for antimatter in space. It has no use in mineral or oil exploration.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 and 2

Two observations support an expanding universe. One is the redshift of light from distant galaxies. The other is the cosmic microwave background, the stretched afterglow of the hot early universe. Asteroid movement and the occurrence of supernova explosions do not show that the universe is expanding.

• ✓ 1. The cosmic microwave background was released about 380,000 years after the Big Bang. The expansion of the universe has stretched it into a cold microwave glow of about 2.7 K. Detecting it supports the expanding, cooling universe of the Big Bang model.
• ✓ 2. Light from distant galaxies is shifted towards longer, redder wavelengths. The farther the galaxy, the larger the shift. This is the classic observation (Hubble's law) showing that galaxies are receding from one another as space expands.
• ✗ 3. Asteroids are small bodies in our own solar system. Their movement says nothing about the large-scale expansion of space.
• ✗ 4. A supernova is the explosion of a single star. Its mere occurrence does not show that space is expanding. Astronomers use the measured brightness and redshift of certain supernovae to track the expansion rate, but the item lists only the occurrence of explosions.

Remember · Expanding universe: galaxies' redshift (Hubble's law) plus the cosmic microwave background, the stretched afterglow of the Big Bang. Asteroids and the mere occurrence of supernova explosions are not evidence of expansion.

📘 Read it in NCERT: Class 11 Fundamentals of Physical Geography, Ch 2 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (a) 1 only

Only statement 1 is correct. Agricultural residues such as coconut shells, groundnut shells and rice husk are used as gasifier feedstock. The gas produced is a mixture of several gases, not just hydrogen and carbon dioxide. It can be burned directly for heat and can also run engines.

• ✓ 1. Coconut shells and rice husk have been used directly in fixed-bed gasifiers. Briquettes made from groundnut shells are good feedstock for fixed-bed gasifiers.
• ✗ 2. Producer gas consists of carbon monoxide, hydrogen and methane, which are its combustible components, along with carbon dioxide and nitrogen. 'Hydrogen and carbon dioxide only' is therefore wrong.
• ✗ 3. The gas can be burned in a burner to provide heat. It can also be used as fuel in an engine to provide mechanical power or electricity, so 'not in internal combustion engines' is wrong.

Remember · Biomass gasification turns biomass into producer gas: CO, H2 and CH4, with CO2 and N2. The gas is used both for heat and in engines for power. Husks and shells are common feedstocks.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1, 2 and 4 only

Graphene is a single atomic layer of carbon, so it is a two-dimensional material. It is extremely thin, very strong and conducts electricity well. Because it is also a transparent conductor, it can serve as a transparent electrode in touch screens and displays. Statement 3 fails because graphene is made of carbon, not silicon. The answer is (c).

• ✓ 1. Graphene is a sheet of carbon only one atom thick, which makes it a two-dimensional material. As a conductor of electricity it performs as well as copper.
• ✓ 2. The Nobel Prize in Physics 2010 press release describes graphene as not only the thinnest material ever but also the strongest.
• ✗ 3. Graphene is a form of carbon, not silicon. It is nearly transparent, but the claim that it is 'entirely made of silicon' makes the statement wrong.
• ✓ 4. Graphene is a transparent conductor, so it can be used in touch screens, light panels and solar cells. There it can replace the fragile and expensive Indium-Tin-Oxide (ITO). ITO is also the standard transparent conducting electrode in LCDs and organic LEDs, so graphene can serve as the conducting electrode for these devices too.

Remember · Graphene is a one-atom-thick sheet of carbon (not silicon) arranged in a honeycomb lattice. It is the thinnest and strongest material tested so far, conducts electricity well and is almost transparent. Geim and Novoselov won the 2010 Physics Nobel for work on it.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2 and 3

All three crops qualify, so the answer is (d). Cowpea, green gram and pigeon pea are leguminous crops. Each gives a pulse grain, each can feed livestock, and each can be grown and turned into the soil as green manure.

• ✓ 1. Cowpea's dry beans are used as a pulse. Because of its nutritive value and soil-improving properties, it is also used as fodder, green manure and cover crop. It is a Kharif pulse grown for grain, forage and green manure.
• ✓ 2. Green gram (moong) is eaten as whole or split dal. Its plant and haulms are fed to cattle. It is also grown as a green-manure crop, enriching the soil through nitrogen fixation.
• ✓ 3. Pigeon pea (arhar/tur) seed is the familiar dal. Its leaves and pods are a palatable, protein-rich fodder. Its leafy biomass can also be returned to the soil as green manure.
• ✗ (b) This wrongly drops cowpea and pigeon pea, which also serve all three purposes.
• ✗ (a) This leaves out pigeon pea, which is also a pulse that yields fodder and green manure.

Remember · Cowpea, green gram and pigeon pea are triple-purpose legumes. They give pulse grain, fodder and green manure, and they enrich soil by fixing nitrogen.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (d) 1, 2 and 3

All three statements are correct. Thorium is three to four times more abundant in nature than uranium. Natural thorium is entirely fertile Th-232, which can be bred into fissile U-233, while natural uranium has only about 0.7% fissile U-235. Thorium-fuelled reactors also produce less long-lived nuclear waste than present-day uranium-fuelled reactors.

• ✓ 1. The IAEA states that thorium is three to four times more abundant in nature than uranium.
• ✓ 2. Natural uranium contains only about 0.7% fissile U-235, and conventional reactors essentially use only this fraction. Natural thorium is made up entirely of fertile Th-232. Once bred into fissile U-233, all of it is potentially usable, so per unit mass of mined mineral thorium can in principle yield more energy.
• ✓ 3. The IAEA notes that thorium-fuelled reactors produce less long-lived nuclear waste than present-day uranium-fuelled reactors.

Remember · Thorium: 3–4 times more abundant than uranium; fertile Th-232 breeds fissile U-233; less long-lived waste. India's three-stage nuclear programme ends with thorium in its third stage, because India has large thorium but limited uranium reserves.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) Carbon, Hydrogen, Nitrogen

The answer is (b). Life arose through chemical evolution, in which simple gas molecules of the early Earth reacted to form organic molecules. Those gases were methane (CH4), ammonia (NH3), hydrogen (H2) and water vapour, and together they supply carbon, hydrogen and nitrogen. Only option (b) has all three.

• ✓ (b) Methane gives carbon and hydrogen, and ammonia gives nitrogen and hydrogen. In Miller's 1953 experiment, an electric discharge in a closed flask of CH4, H2, NH3 and water vapour produced amino acids, the building blocks of proteins.
• ✗ (a) Sodium was not one of the simple gases (CH4, NH3, H2, water vapour) from which the first organic molecules formed. Carbon and nitrogen are missing from this set.
• ✗ (c) The early atmosphere had very little free oxygen. Calcium and phosphorus were not part of the simple gases that gave rise to the first organic molecules. Carbon, hydrogen and nitrogen are all missing from this set.
• ✗ (d) Carbon and hydrogen fit, but potassium does not. Nitrogen, which is needed for amino acids, is missing.

Remember · The early atmosphere had methane, ammonia and water vapour, with very little free oxygen. Miller (1953) made amino acids from CH4, NH3, H2 and water vapour, so carbon, hydrogen and nitrogen were the key elements.

📘 Read it in NCERT: Class 12 Biology, Ch 6 (practise this chapter) · Class 11 Fundamentals of Physical Geography, Ch 2 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (b) 1, 3 and 4 only

Capillarity is the rise of a liquid through narrow spaces such as fibres, wicks and fine tubes. It feeds the kerosene lamp wick, makes blotting paper absorb ink, and aids the rise of water in plants. A straw works differently: sucking lowers the pressure inside it, and atmospheric pressure on the drink's surface pushes the liquid up. So statements 1, 3 and 4 are correct.

• ✓ 1. Kerosene climbs the cotton wick through the tiny gaps between its fibres by capillary rise. Without capillarity the flame would get no fuel.
• ✗ 2. A straw works by suction. Sucking lowers the pressure inside the straw, and atmospheric pressure on the drink's surface pushes the liquid up. This would work even if capillarity did not exist.
• ✓ 3. Blotting paper is a mass of fine pores between fibres. Ink is drawn into these pores by capillary action. Without capillarity it would not absorb.
• ✓ 4. Water rises to the top of trees through very narrow xylem vessels. Transpiration creates a pull in the xylem. The water column can be pulled up unbroken only because water molecules cling to the vessel walls (adhesion) and to each other (cohesion). These are the same forces behind capillarity. Without them, water could not reach the crowns of tall trees.

Remember · Capillarity explains wicks, blotting paper, soil moisture and water rise in plants. Drinking through a straw is atmospheric pressure at work, not capillarity.

📘 Read it in NCERT: Class 11 Fundamentals of Physical Geography, Ch 5 (practise this chapter) · Class 9 Exploration, Ch 3 (practise this chapter)

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 1 and 3 only

Statements 1 and 3 are correct, so the answer is (c). The supply concern came from China restricting exports of rare earths while demand for them in electronics kept rising. Statement 2 is wrong because rare-earth deposits occur in many countries, including India, Brazil, Malaysia, South Africa and the USA.

• ✓ 1. China was the dominant producer of rare earths and imposed three distinct types of restrictions on their export, including export duties and quotas. These measures were challenged at the WTO in dispute DS431.
• ✗ 2. Rare earths are not confined to four countries. Monazite deposits are found in Australia, Brazil, China, India, Malaysia, South Africa, Sri Lanka, Thailand and the United States. China and the United States also hold large bastnäsite deposits.
• ✓ 3. Rare earths are raw materials used in producing various kinds of electronic goods, and in other high-tech products such as permanent magnets. Rising demand for these uses, combined with restricted Chinese exports, tightened supply.

Remember · Rare-earth supply worries around 2010–12 came from China's export restrictions. The metals themselves occur in many countries, including India, Brazil, Malaysia and the USA.

Question: UPSC Civil Services (Preliminary) 2012, General Studies Paper I. Explanation: Minimalist IAS, checked 25 Oct 2026 (how we verify). Permalink · Report an error

Answer: (c) 2, 3, 1

In the demographic transition model, a society starts with high birth and death rates. Death rates fall first, so births stay high while deaths are low. Finally, birth rates also fall, giving low birth and low death rates. The order is 2, 3, 1, which is option (c).

• ✓ 2. This is the first stage, with high fertility and high mortality. Epidemics and an uncertain food supply keep deaths high, and people have many children to make up for them. Population growth is slow.
• ✓ 3. This is the middle stage. Better sanitation and health care cut mortality, while fertility stays high at first and declines only over time. The gap between births and deaths makes the net addition to population large.
• ✓ 1. This is the last stage. Both fertility and mortality fall considerably, so population is stable or grows slowly. Society becomes urbanised and literate.
• ✗ (b) The order 2, 1, 3 puts low birth and death rates before the stage of high births and low deaths. In fact, the fall in death rates comes first and the fall in birth rates comes last.
• ✗ (d) The order 3, 2, 1 starts with low deaths and high births. A society cannot begin with low mortality before its health and sanitation have improved.

Remember · Demographic transition runs in three stages. Stage 1 has high birth and high death rates. Stage 2 has high birth and falling death rates. Stage 3 has low birth and low death rates.

📘 Read it in NCERT: Class 12 Fundamentals of Human Geography, Ch 2 (practise this chapter) · Class 12 Fundamentals of Human Geography, Ch 2 (practise this chapter)