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UPSC Environment PYQs 2023 | Vaidra | Vaidra
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Environment UPSC PYQ 2023

41 questions from the UPSC 2023 examination.

41 questions

1Mediumprelims
Environment

Consider the following fauna: 1. Lion-tailed Macaque 2. Malabar Civet 3. Sambar Deer How many of the above are generally nocturnal or most active after sunset?

AOnly one
BOnly two
CAll three
DNone
2Mediumprelims
Environment

With reference to the role of biofilters in Recirculating Aquaculture System, consider the following statements: 1. Biofilters provide waste treatment by removing uneaten fish feed. 2. Biofilters convert ammonia present in fish waste to nitrate. 3. Biofilters increase phosphorus as nutrient for fish in water. How many of the statements given above are correct?

AOnly one
BOnly two
CAll three
DNone
3Mediumprelims
Environment

Consider the following statements regarding mercury pollution : 1. Gold mining activity is a source of mercury pollution in the world. 2. Coal-based thermal power plants cause mercury pollution. 3. There is no known safe level of exposure to mercury. How many of the above statements are correct?

AOnly one
BOnly two
CAll three
DNone
4Mediumprelims
Environment

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?

AFishing cat
BOrangutan
COtter
DSloth bear
5Mediumprelims
Environment

Consider the following statements: 1. In India, the Biodiversity Management Committees are key to the realization of the objectives of the Nagoya Protocol. 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?

A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2
6Mediumprelims
Environment

Consider the following statements regarding mercury pollution: 1. Gold mining activity is a source of mercury pollution in the world. 2. Coal-based thermal power plants cause mercury pollution. 3. There is no known safe level of exposure to mercury. How many of the above statements are correct?

AOnly one
BOnly two
CAll three
DNone
7Mediumprelims
Environment

Consider the following trees : 1. Jackfruit (Artocarpus heterophyllus) 2. Mahua (Madhuca indica) 3. Teak (Tectona grandis) How many of the above are deciduous trees?

AOnly one
BOnly two
CAll three
DNone
8Mediumprelims
Environment

Consider the following statements regarding the Indian squirrels : 1. They build nests by making burrows in the ground. 2. They store their food materials like nuts and seeds in the ground. 3. They are omnivorous. How many of the above statements are correct?

AOnly one
BOnly two
CAll three
DNone
9Mediumprelims
Environment

Which of the following organisms perform waggle dance for others of their kin to indicate the direction and the distance to a source of their food?

AButterflies
BDragonflies
CHoneybees
DWasps
10Mediumprelims
Environment

Consider the following statements : Statement-I : Marsupials are not naturally found in India. 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?

ABoth Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I
BBoth Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I
CStatement-I is correct but Statement-II is incorrect
DStatement-I is incorrect but Statement-II is correct
11Mediumprelims
Environment

Consider the following statements: Once the Central Government notifies an area as a 'Community Reserve' 1. the Chief Wildlife Warden of the State becomes the governing authority of such forest 2. hunting is not allowed in such area 3. people of such area are allowed to collect non-timber forest produce 4. people of such area are allowed traditional agricultural practices How many of the above statements are correct?

AOnly one
BOnly two
COnly three
DAll four
12Mediumprelims
Environment

Consider the following statements: Statement-I: Carbon markets are likely to be one of the most widespread tools in the fight against climate change. 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?

ABoth Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I
BBoth Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I
CStatement-I is correct but Statement-II is incorrect
DStatement-I is incorrect but Statement-II is correct
13Mediumprelims
Environment

Consider the following statements regarding the Indian squirrels: 1. They build nests by making burrows in the ground. 2. They store their food materials like nuts and seeds in the ground. 3. They are omnivorous. How many of the above statements are correct?

AOnly one
BOnly two
CAll three
DNone
14Mediumprelims
Environment

With reference to coal-based thermal power plants in India, consider the following statements: 1. None of them uses seawater. 2. None of them is set up in water-stressed district. 3. None of them is privately owned. How many of the above statements are correct?

AOnly one
BOnly two
CAll three
DNone
15Mediumprelims
Environment

Consider the following statements : Statement-I : Carbon markets are likely to be one of the most widespread tools in the fight against climate change. 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?

ABoth Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I
BBoth Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I
CStatement-I is correct but Statement-II is incorrect
DStatement-I is incorrect but Statement-II is correct
16Mediumprelims
Environment

Consider the following statements: Once the Central Government notifies an area as a 'Community Reserve' 1. the Chief Wildlife Warden of the State becomes the governing authority of such forest 2. hunting is not allowed in such area 3. people of such area are allowed to collect non-timber forest produce 4. people of such area are allowed traditional agricultural practices How many of the above statements are correct?

AOnly one
BOnly two
COnly three
DAll four
17Mediumprelims
Environment

Consider the following trees: 1. Jackfruit (Artocarpus heterophyllus) 2. Mahua (Madhuca indica) 3. Teak (Tectona grandis) How many of the above are deciduous trees?

AOnly one
BOnly two
CAll three
DNone
18Mediumprelims
Environment

With reference to green hydrogen, consider the following statements: 1. It can be used directly as a fuel for internal combustion. 2. It can be blended with natural gas and used as fuel for heat or power generation. 3. It can be used in the hydrogen fuel cell to run vehicles. How many of the above statements are correct?

AOnly one
BOnly two
CAll three
DNone
19Mediumprelims
Environment

Consider the following statements: Statement-I: Marsupials are not naturally found in India. 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?

ABoth Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I
BBoth Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I
CStatement-I is correct but Statement-II is incorrect
DStatement-I is incorrect but Statement-II is correct
20Mediumprelims
Environment

Consider the following statements : 1. In India, the Biodiversity Management Committees are key to the realization of the objectives of the Nagoya Protocol. 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?

A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2
21Mediumprelims
Environment

Consider the following activities: 1. Spreading finely ground basalt rock on farmlands extensively 2. Increasing the alkalinity of oceans by adding lime 3. Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters How many of the above activities are often considered and discussed for carbon capture and sequestration?

AOnly one
BOnly two
CAll three
DNone
22Mediumprelims
Environment

Consider the following heavy industries: 1. Fertilizer plants 2. Oil refineries 3. Steel plants Green hydrogen is expected to play a significant role in decarbonizing how many of the above industries?

AOnly one
BOnly two
CAll three
DNone
23Mediumprelims
Environment

Consider the following statements: Statement-I: According to the United Nations' 'World Water Development Report, 2022', India extracts more than a quarter of the world's groundwater withdrawal each year. Statement-II: India needs to extract more than a quarter of the world's groundwater each year to satisfy the drinking water and sanitation needs of almost 18% of world's population living in its territory. Which one of the following is correct in respect of the above statements?

ABoth Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I
BBoth Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I
CStatement-I is correct but Statement-II is incorrect
DStatement-I is incorrect but Statement-II is correct
24Mediumprelims
Environment

Consider the following statements: Statement-I: According to the United Nations' 'World Water Development Report, 2022', India extracts more than a quarter of the world's groundwater withdrawal each year. Statement-II: India needs to extract more than a quarter of the world's groundwater each year to satisfy the drinking water and sanitation needs of almost 18% of world's population living in its territory. Which one of the following is correct in respect of the above statements?

ABoth Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I
BBoth Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I
CStatement-I is correct but Statement-II is incorrect
DStatement-I is incorrect but Statement-II is correct
25Mediumprelims
Environment

Consider the following statements regarding mercury pollution: 1. Gold mining activity is a source of mercury pollution in the world. 2. Coal-based thermal power plants cause mercury pollution. 3. There is no known safe level of exposure to mercury. How many of the above statements are correct?

AOnly one
BOnly two
CAll three
DNone
26Mediumprelims
Environment

Consider the following statements : 1. Some mushrooms have medicinal properties. 2. Some mushrooms have psycho-active properties. 3. Some mushrooms have insecticidal properties. 4. Some mushrooms have bioluminescent properties. How many of the above statements are correct?

AOnly one
BOnly two
COnly three
DAll four
27Mediumprelims
Environment

Consider the following fauna: 1. Lion-tailed Macaque 2. Malabar Civet 3. Sambar Deer How many of the above are generally nocturnal or most active after sunset?

AOnly one
BOnly two
CAll three
DNone
28Mediumprelims
Environment

Consider the following: 1. Aerosols 2. Foam agents 3. Fire retardants 4. Lubricants In the making of how many of the above are hydrofluorocarbons used?

AOnly one
BOnly two
COnly three
DAll four
29Mediumprelims
Environment

Consider the following activities: 1. Spreading finely ground basalt rock on farmlands extensively 2. Increasing the alkalinity of oceans by adding lime 3. Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters How many of the above activities are often considered and discussed for carbon capture and sequestration?

AOnly one
BOnly two
CAll three
DNone
30Mediumprelims
Environment

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

AThe International Union for Conservation of Nature
BThe United Nations Environment Programme
CThe United Nations World Commission for Environment and Development
DThe World Wide Fund for Nature
31Mediumprelims
Environment

Consider the following statements : Once the Central Government notifies an area as a 'Community Reserve' 1. the Chief Wildlife Warden of the State becomes the governing authority of such forest 2. hunting is not allowed in such area 3. people of such area are allowed to collect non-timber forest produce 4. people of such area are allowed traditional agricultural practices How many of the above statements are correct?

AOnly one
BOnly two
COnly three
DAll four
32Mediumprelims
Environment

Consider the following fauna : 1. Lion-tailed Macaque 2. Malabar Civet 3. Sambar Deer How many of the above are generally nocturnal or most active after sunset?

AOnly one
BOnly two
CAll three
DNone
33Mediumprelims
Environment

Consider the following statements: Statement-I: Marsupials are not naturally found in India. 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?

ABoth Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I
BBoth Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I
CStatement-I is correct but Statement-II is incorrect
DStatement-I is incorrect but Statement-II is correct
34Mediumprelims
Environment

Consider the following statements: Statement-I: Carbon markets are likely to be one of the most widespread tools in the fight against climate change. 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?

ABoth Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I
BBoth Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I
CStatement-I is correct but Statement-II is incorrect
DStatement-I is incorrect but Statement-II is correct
35Mediumprelims
Environment

Consider the following: 1. Aerosols 2. Foam agents 3. Fire retardants 4. Lubricants In the making of how many of the above are hydrofluorocarbons used?

AOnly one
BOnly two
COnly three
DAll four
36Mediumprelims
Environment

Consider the following statements : Statement-I : According to the United Nations' 'World Water Development Report, 2022', India extracts more than a quarter of the world's groundwater withdrawal each year. Statement-II : India needs to extract more than a quarter of the world's groundwater each year to satisfy the drinking water and sanitation needs of almost 18% of world's population living in its territory. Which one of the following is correct in respect of the above statements?

ABoth Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I
BBoth Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I
CStatement-I is correct but Statement-II is incorrect
DStatement-I is incorrect but Statement-II is correct
37Mediumprelims
Environment

Consider the following statements: 1. In India, the Biodiversity Management Committees are key to the realization of the objectives of the Nagoya Protocol. 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?

A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2
38Mediumprelims
Environment

Consider the following statements: Once the Central Government notifies an area as a 'Community Reserve' 1. the Chief Wildlife Warden of the State becomes the governing authority of such forest. 2. hunting is not allowed in such area. 3. people of such area are allowed to collect non-timber forest produce. 4. people of such area are allowed traditional agricultural practices. How many of the above statements are correct?

AOnly one
BOnly two
COnly three
DAll four
39Mediumprelims
Environment

Consider the following activities : 1. Spreading finely ground basalt rock on farmlands extensively 2. Increasing the alkalinity of oceans by adding lime 3. Capturing carbon dioxide released by various industries and pumping it into abandoned subterranean mines in the form of carbonated waters How many of the above activities are often considered and discussed for carbon capture and sequestration?

AOnly one
BOnly two
CAll three
DNone
40Mediumprelims
Environment

Consider the following trees: 1. Jackfruit (Artocarpus heterophyllus) 2. Mahua (Madhuca indica) 3. Teak (Tectona grandis) How many of the above are deciduous trees?

AOnly one
BOnly two
CAll three
DNone
41Mediumprelims
Environment

Consider the following statements regarding the Indian squirrels: 1. They build nests by making burrows in the ground. 2. They store their food materials like nuts and seeds in the ground. 3. They are omnivorous. How many of the above statements are correct?

AOnly one
BOnly two
CAll three
DNone
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