UPSC Prelims 2022 Previous Year Questions

Browse all 100 questions from the UPSC Prelims 2022 paper. Every question includes the correct answer, a detailed explanation, the source it was drawn from, and a breakdown of what UPSC intended to test.

UPSC Prelims 2022 questions by subject

Environment and Ecology questions from UPSC Prelims 2022

Q1UPSC Prelims 2022Environment and Ecology

Consider the following pairs:Wetland/Lake – Location1. Hokera Wetland – Punjab2. Renuka Wetland – Himachal Pradesh3. Rudrasagar Lake – Tripura4. Sasthamkotta Lake- Tamil Nadu
How many pairs given above are correctly matched?

  • (a)Only one pair
  • (b)Only two pairs
  • (c)Only three pairs
  • (d)All four pairs
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Q2UPSC Prelims 2022Environment and Ecology

"Climate Action Tracker" which monitors the pledges of different emission reduction countries is a:

  • (a)Database created by a coalition of research organizations
  • (b)Wing of "International Panel of Climate Change"
  • (c)Committee Framework Change"
  • (d)Agency promoted and financed by United Nations Environment Programme and World Bank under "United Nations Convention on Climate
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Q3UPSC Prelims 2022Environment and Ecology

"If rainforests and tropical forests are the lungs of the Earth, then surely wetlands function as its kidneys." Which one of the following functions of wetlands best reflects the above statement?

  • (a)The water cycle in wetlands involves surface runoff, subsoil percolation, and evaporation.
  • (b)Algae form the nutrient base upon which fish, crustaceans, mollusks, birds, reptiles, and mammals thrive.
  • (c)Wetlands play a vital role in maintaining sedimentation balance and soil stabilization.
  • (d)Aquatic Plants absorb heavy metals and excess nutrients.
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Q4UPSC Prelims 2022Environment and Ecology

With reference to "GuCChi" sometime, mentioned in the news, consider the following statements:
1. It is a fungus.
2. It grows in some Himalayan forest areas.
3. It is commercially cultivated in the Himalayan foothills of north-eastern India.
Which of the statements given above is/are correct?

  • (a)1 only
  • (b)3 only
  • (c)1 and 2
  • (d)2 and 3
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Q5UPSC Prelims 2022Environment and Ecology

Consider the following statements:
1. "The Climate Group" is an international non-profit organization that drives climate action by building large networks and runs them.
2. The International Energy Agency in partnership with the Climate Group launched a global initiative "EP100".
3. EP100 brings together leading companies committed to driving innovation in energy efficiency and increasing competitiveness while delivering on emission reduction goals.
4. Some Indian companies are members of EP1
00.
5. The International Energy Agency is the Secretariat to the "Under2 Coalition".
Which of the statements given above are correct?

  • (a)1, 2, 4 and 5
  • (b)1, 3 and 4 only
  • (c)2, 3 and 5 only
  • (d)1, 2, 3, 4 and 5
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Q6UPSC Prelims 2022Environment and Ecology

Among the following crops, which one is the most important anthropogenic source of both methane and nitrous oxide?

  • (a)Cotton
  • (b)Rice
  • (c)Sugarcane
  • (d)Wheat
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Q7UPSC Prelims 2022Environment and Ecology

In the context of WHO Air Quality Guidelines, consider the following statements:
1. The 24-hour mean of PM2.5 should not exceed 15 pg/m3 and the annual mean of PM2.5 should not exceed 5 pg/m3.
2. In a year, the highest levels of ozone pollution occur during periods of inclement weather.
3. PM10 can penetrate the lung and enter the bloodstream.
4. Excessive ozone in the air can trigger asthma.
Which of the statements given above are correct?

  • (a)1, 3 and 4
  • (b)1 and 4 only
  • (c)2, 3 and 4
  • (d)1 and 2 only
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Q8UPSC Prelims 2022Environment and Ecology

"System of Rice Intensification" of cultivation, in which alternate wetting and drying of rice fields are practiced, results in:

1. Reduced seed requirement
2. Reduced methane production
3. Reduced electricity consumption

Select the correct answer using the code given below:

  • (a)1 and 2 only
  • (b)2 and 3 only
  • (c)1 and 3 only
  • (d)1, 2 and 3
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Q9UPSC Prelims 2022Environment and Ecology

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

  • (a)Restoration of damaged coral reefs
  • (b)Development of building materials using plant residues
  • (c)Identification of areas for exploration/extraction of shale gas
  • (d)Providing salt licks for wild animals in forests/protected areas
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Q10UPSC Prelims 2022Environment and Ecology

Which of the following is not a bird?

  • (a)Golden Mahseer
  • (b)Indian Nightjar
  • (c)Spoonbill
  • (d)White Ibis
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Q11UPSC Prelims 2022Environment and Ecology

The "Miyawaki method" is well known for the:

  • (a)Promotion of commercial farming in arid and semi-arid areas
  • (b)Development of gardens using genetically modified flora
  • (c)Creation of mini forests in urban areas
  • (d)Harvesting wind energy on coastal areas and on sea surfaces
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Q12UPSC Prelims 2022Environment and Ecology

Which one of the following has been constituted under the Environment (Protection) Act, 1986?

  • (a)Central Water Commission
  • (b)Central Ground Water Board
  • (c)Central Ground Water Authority
  • (d)National Water Development Agency
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Q13UPSC Prelims 2022Environment and Ecology

Consider the following statements:1. High clouds primarily reflect solar radiation and cool the surface of the Earth.2. Low clouds have a high absorption of infrared radiation emanating from the Earth's surface and thus cause a warming effect.
Which of the statements given above is/are correct?

  • (a)1 only
  • (b)2 only
  • (c)Both 1 and 2
  • (d)Neither 1 nor 2
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Q14UPSC Prelims 2022Environment and Ecology

Which one of the following best describes the term "greenwashing"?

  • (a)Conveying a false impression that a company's products are eco-friendly and environmentally sound
  • (b)Non-inclusion of ecological/ environmental costs in the Annual Financial Statements of a country
  • (c)Ignoring the disastrous ecological consequences while undertaking infrastructure development
  • (d)Making mandatory provisions for environmental costs in a government project/program
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Q15UPSC Prelims 2022Environment and Ecology

Consider the following:
1. Carbon monoxide2. Nitrogen oxide3. Ozone4. Sulfur dioxide
Excess of which of the above in the environment is/are the cause(s) of acid rain?

  • (a)1, 2 and 3
  • (b)2 and 4 only
  • (c)4 only
  • (d)1, 3 and 4
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Q16UPSC Prelims 2022Environment and Ecology

Which one of the following statements best describes the ‘Polar Code'?

  • (a)It is the international code of safety for ships operating in polar waters.
  • (b)It is the agreement of the countries around the North Pole regarding the demarcation of their territories in the polar region.
  • (c)It is a set of norms to be followed by the countries whose scientists undertake research studies in the North Pole and the South Pole.
  • (d)It is a trade and security agreement of the member countries of the Arctic Council.
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Q17UPSC Prelims 2022Environment and Ecology

Consider the following statements:
1. Gujarat has the largest solar park in India.
2. Kerala has a fully solar-powered International Airport.
3. Goa has the largest floating solar photovoltaic project in India.
Which of the statements given above is/are correct?

  • (a)1 and 2
  • (b)2 only
  • (c)1 and 3
  • (d)3 only
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Q18UPSC Prelims 2022Environment and Ecology

With reference to Indian laws about wildlife protection, consider the following statements:
1. Wild animals are the sole property of the government.
2. When a wild animal is declared protected, such animal is entitled to equal protection whether it is found in protected areas or outside.
3. Apprehension of a protected wild animal becoming a danger to human life is sufficient ground for its capture or killing.
Which of the statements, given above is/are correct?

  • (a)1 and 2
  • (b)2 only
  • (c)1 and 3
  • (d)3 only
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Q19UPSC Prelims 2022Environment and Ecology

Certain species of which one of the following organisms are well known as cultivators of fungi?

  • (a)Ant
  • (b)Cockroach
  • (c)Crab
  • (d)Spider
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