Environment & ecology: practice set 5

Which of the following statements with regard to Green Hydrogen is/are correct?

1. 1.It is decarbonized hydrogen obtained from natural gas reforming combined with carbon capture and storage (CCS).
2. 2.It is produced using electrolysis of water with electricity generated by renewable energy.
3. 3.National Green Hydrogen Mission of India aims for abatement of nearly 50 MMT of annual greenhouse gas emissions by 2030.

Select the answer using the code given below:

Consider the following pairs:

How many of the above pairs are correctly matched?

Consider the following statements:

1. Statement I: Activated carbon is a good and an attractive tool to remove pollutants from effluent streams and to remediate contaminants from various industries.
2. Statement II: Activated carbon exhibits a large surface area and a strong potential for adsorbing heavy metals.
3. Statement III: Activated carbon can be easily synthesized from environmental wastes with high carbon content.

Which one of the following is correct in respect of the above statements?

Consider the following:

1. 1.Cashew
2. 2.Papaya
3. 3.Red sanders

How many of the above trees are actually native to India?

Consider the following statements:

1. Statement-I: The European Parliament approved The Net-Zero Industry Act recently.
2. Statement-II: The European Union intends to achieve carbon neutrality by 2040 and therefore aims to develop all of its own clean technology by that time.

Which one of the following is correct in respect of the above statements?

‘Invasive Species Specialist Group’ (that develops Global Invasive Species Database) belongs to which one of the following organizations?

Which one of the following makes a tool with a stick to scrape insects from a hole in a tree or a log of wood?

Consider the following:

1. 1.Aerosols
2. 2.Foam agents
3. 3.Fire retardants
4. 4.Lubricants

In the making of how many of the above are hydrofluorocarbons used?

Consider the following pairs:

How many pairs given above are correctly matched?

"Biorock technology" is talked about in which one of the following situations?

Which one of the following best describes the term “greenwashing”?

Why is there a concern about copper smelting plants?

1. 1.They may release lethal quantities of carbon monoxide into environment.
2. 2.The copper slag can cause the leaching of some heavy metals into environment.
3. 3.They may release sulphur dioxide as a pollutant.

Select the correct answer using the code given below.

Which one of the following is a filter feeder?

Which of the following have species that can establish symbiotic relationship with other organisms?

1. 1.Cnidarians
2. 2.Fungi
3. 3.Protozoa

Select the correct answer using the code given below.

Consider the following statements:

1. 1.Coal ash contains arsenic, lead and mercury.
2. 2.Coal-fired power plants release sulphur dioxide and oxides of nitrogen into the environment.
3. 3.High ash content is observed in Indian coal.

Which of the statements given above is/are correct?

Consider the following statements:

1. 1.36% of India's districts are classified as “overexploited” or “critical” by the Central Ground Water Authority (CGWA).
2. 2.CGWA was formed under the Environment (Protection) Act.
3. 3.India has the largest area under groundwater irrigation in the world.

Which of the statements given above is/are correct?

Which of the following are in Agasthyamala Biosphere Reserve?

Consider the following statements:

1. 1.Some species of turtles are herbivores.
2. 2.Some species of fish are herbivores.
3. 3.Some species of marine mammals are herbivores.
4. 4.Some species of snakes are viviparous.

Which of the statements given above are correct?

In India, 'extended producer responsibility' was introduced as an important feature in which of the following?

With reference to the ‘Global Alliance for Climate-Smart Agriculture (GACSA)’, which of the following statements is/are correct?

1. 1.GACSA is an outcome of the Climate Summit held in Paris in 2015.
2. 2.Membership of GACSA does not create any binding obligations.
3. 3.India was instrumental in the creation of GACSA.

Select the correct answer using the code given below:

Which of the following is/are the possible consequence/s of heavy sand mining in riverbeds?

1. 1.Decreased salinity in the river
2. 2.Pollution of groundwater
3. 3.Lowering of the water-table

Select the correct answer using the code given below:

Consider the following statements:

1. 1.Climate and Clean Air Coalition (CCAC) to Reduce Short Lived Climate Pollutants is a unique initiative of G20 group of countries.
2. 2.The CCAC focuses on methane, black carbon and hydrofluorocarbons.

Which of the statements given above is/are correct?

What is/are the importance/importances of the United Nations Convention to Combat Desertification?

1. 1.It aims to promote effective action through innovative national programmes and supportive international partnerships.
2. 2.It has a special/particular focus on South Asia and North Africa regions, and its Secretariat facilitates the allocation of major portion of financial resources to these regions.
3. 3.It is committed to bottom-up approach, encouraging the participation of local people in combating the desertification.

Select the correct answer using the code given below.

What is/are unique about ‘Kharai camel’, a breed found in India?

1. 1.It is capable of swimming up to three kilometres in seawater.
2. 2.It survives by grazing on mangroves.
3. 3.It lives in the wild and cannot be domesticated.

Select the correct answer using the code given below.

'Gadgil Committee Report' and 'Kasturirangan Committee Report', sometimes seen in the news, are related to

With reference to the Agreement at the UNFCCC Meeting in Paris in 2015, which of the following statements is/are correct?

1. 1.The Agreement was signed by all the member countries of the UN and it will go into effect in 2017.
2. 2.The Agreement aims to limit the greenhouse gas emissions so that the rise in average global temperature by the end of this century does not exceed 2 °C or even 1.5 °C above pre-industrial levels.
3. 3.Developed countries acknowledged their historical responsibility in global warming and committed to donate $ 1000 billion a year from 2020 to help developing countries to cope with climate change.

Select the correct answer using the code given below.