Environment & ecology: practice set 6

Which of the following best explain(s) the rationale for protecting mangrove ecosystems in the context of climate resilience?

1. 1.Mangroves reduce tidal energy and store freshwater, making them ideal sites for paddy cultivation in saline estuarine belts.
2. 2.Their salt-sensitive roots filter seawater, making mangroves key to converting coastal land into freshwater aquaculture zones.
3. 3.By withstanding tidal surges and offering biomass resources, mangroves function both as natural bio-shields and livelihood bases for rural communities.

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Consider the following statements:

1. Statement I: At the 28th United Nations Climate Change Conference (COP28), India refrained from signing the 'Declaration on Climate and Health'.
2. Statement II: The COP28 Declaration on Climate and Health is a binding declaration; and if signed, it becomes mandatory to decarbonize health sector.
3. Statement III: If India's health sector is decarbonized, the resilience of its health-care system may be compromised.

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

Artificial way of causing rainfall to reduce air pollution makes use of

Consider the following:

1. 1.Carabid beetles
2. 2.Centipedes
3. 3.Flies
4. 4.Termites
5. 5.Wasps

Parasitoid species are found in how many of the above kind of organisms?

Consider the following statements:

1. Statement-I: Marsupials are not naturally found in India.
2. Statement-II: Marsupials can thrive only in montane grasslands with no predators.

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

Consider the following statements:

1. Statement-I: Carbon markets are likely to be one of the most widespread tools in the fight against climate change.
2. Statement-II: Carbon markets transfer resources from the private sector to the State.

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

Consider the following statements regarding mercury pollution:

1. 1.Gold mining activity is a source of mercury pollution in the world.
2. 2.Coal-based thermal power plants cause mercury pollution.
3. 3.There is no known safe level of exposure to mercury.

How many of the above statements are correct?

Consider the following statements:

1. 1.In India, the Biodiversity Management Committees are key to the realization of the objectives of the Nagoya Protocol.
2. 2.The Biodiversity Management Committees have important functions in determining access and benefit sharing, including the power to levy collection fees on the access of biological resources within its jurisdiction.

Which of the statements given above is/are correct?

With reference to "Gucchi" sometimes mentioned in the news, consider the following statements:

1. 1.It is a fungus.
2. 2.It grows in some Himalayan forest areas.
3. 3.It is commercially cultivated in the Himalayan foothills of north-eastern India.

Which of the statements given above is/are correct?

The "Miyawaki method" is well known for the:

With reference to furnace oil, consider the following statements:

1. 1.It is a product of oil refineries.
2. 2.Some industries use it to generate power.
3. 3.Its use causes sulphur emissions into environment.

Which of the statements given above are correct?

What is blue carbon?

"Leaf litter decomposes faster than in any other biome and as a result the soil surface is often almost bare. Apart from trees, the vegetation is largely composed of plant forms that reach up into the canopy vicariously, by climbing the trees or growing as epiphytes, rooted on the upper branches of trees." This is the most likely description of

Consider the following statements:

1. 1.Moringa (drumstick tree) is a leguminous evergreen tree.
2. 2.Tamarind tree is endemic to South Asia.
3. 3.In India, most of the tamarind is collected as minor forest produce.
4. 4.India exports tamarind and seeds of moringa.
5. 5.Seeds of moringa and tamarind can be used in the production of biofuels.

Which of the statements given above are correct?

Which of the following Protected Areas are located in Cauvery basin?

1. 1.Nagarhole National Park
2. 2.Papikonda National Park
3. 3.Sathyamangalam Tiger Reserve
4. 4.Wayanad Wildlife Sanctuary

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In the context of which one of the following are the terms ‘pyrolysis and plasma gasification’ mentioned?

Consider the following pairs:

Which of the pairs given above are correctly matched?

Consider the following statements:

1. 1.Under Ramsar Convention, it is mandatory on the part of the Government of India to protect and conserve all the wetlands in the territory of India.
2. 2.The Wetlands (Conservation and Management) Rules, 2010 were framed by the Government of India based on the recommendations of Ramsar Convention.
3. 3.The Wetlands (Conservation and Management) Rules, 2010 also encompass the drainage area or catchment regions of the wetlands as determined by the authority.

Which of the statements given above is/are correct?

How is the National Green Tribunal (NGT) different from the Central Pollution Control Board (CPCB)?

1. 1.The NGT has been established by an Act whereas the CPCB has been created by an executive order of the Government.
2. 2.The NGT provides environmental justice and helps reduce the burden of litigation in the higher courts whereas the CPCB promotes cleanliness of streams and wells, and aims to improve the quality of air in the country.

Which of the statements given above is/are correct?

Which of the following statements best describes "carbon fertilization"?

In which one of the following States is Pakhui Wildlife Sanctuary located?

In the context of solving pollution problems, what is/are the advantage/advantages of bioremediation technique?

1. 1.It is a technique for cleaning up pollution by enhancing the same biodegradation process that occurs in nature.
2. 2.Any contaminant with heavy metals such as cadmium and lead can be readily and completely treated by bioremediation using microorganisms.
3. 3.Genetic engineering can be used to create microorganisms specifically designed for bioremediation.

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The term 'Intended Nationally Determined Contributions' is sometimes seen in the news in the context of

Which of the following are the key features of 'National Ganga River Basin Authority (NGRBA)'?

1. 1.River basin is the unit of planning and management.
2. 2.It spearheads the river conservation efforts at the national level.
3. 3.One of the Chief Ministers of the States through which the Ganga flows becomes the Chairman of NGRBA on rotation basis.

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Recently, our scientists have discovered a new and distinct species of banana plant which attains a height of about 11 metres and has orange-coloured fruit pulp. In which part of India has it been discovered?