Sunday 25 June 2023

2023 Prelims Questions on Environment/Ecology

 1. 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?

a) Only one

b) Only two

c) Only three

d) All four

 

2. Consider the following statements:

Statement-I: India, despite having Uranium deposits, depends on coal for most of its electricity production.

Statement-II: Uranium, enriched to the extent of at least 60%, is required for the production of electricity.

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

a)   Both Statement-I and Statement – II are correct and Statement- II is the correct explanation for Statement- I

b)   Both Statement I and Statement II are correct and Statement-II is not the correct explanation for Statement-I

c)   Statement- I is Correct but Statement-II is incorrect

d)   Statement-I incorrect but Statement-II is correct.

 

3. 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?

a)   Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I

b)   Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I

c)   Statement-I is correct Statement-II is incorrect.

d)   Statement-I incorrect but Statement-II is correct.

 

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

a)   The International Union Conservation of Nature

b)   The United Nations Environment Programme

c)   The United Nations World Commission for Environment and Development

d)   The WorldWide Fund for Nature

 

5. 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?

a) Only one

b) Only two

c) All three

d) None

 

6. 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?

a)   Butterflies

b)   Dragonflies

c)   Honeybees

d)   Wasps

 

7. 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?

a) Only one

b) Only two

c) All three

d) None

 

8. Consider the following statements:

  1. Some microorganisms can grow in environments with temperature above the boiling point of water.
  2. Some microorganisms can grow in environments with temperature below the freezing point of water.
  3. Some microorganisms can grow in highly acidic environment with a pH below 3.

How many of the above statements are Correct?

a)   Only one

b)   Only two

c)   All three

d)   None

 

9. 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?

a) Fishing cat

b) Orangutan

c) Otter

d) Sloth bear

 

10. 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?

a) Only one

b) Only two

c) Only three

d) All four

 

11. Consider the following trees:

  1. Jackfruit (Artocarpus heterophyllus)
  2. Mahus (Madhuca indica)
  3. Teak (Tectona grandis)

How many of the above are deciduous trees?

a)   Only one

b)   Only two

c)   All three

d)   None

 

12. Which one of the following is the best example of repeated falls in sea level, giving rise to present-day extensive marshland?

a) Bhitarkanika Mangroves

b) Marakkanam Salt Pans

c) Naupada Swamp

d) Rann of Kutch

 

13. Ilmenite and rutile, abundantly available in certain coastal tracts of India, are rich sources of which one of the following?

a) Aluminium

b) Copper

c) Iron

d) Titanium

 

14. About three-fourths of world’s cobalt, a metal required for the manufacture of batteries for electric motor vehicles, is produced by

a) Argentina

b) Botswana

c) the Democratic Republic of the Congo

d) Kazakhstan

 

15. 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?

a) Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I

b) Both Statement-I and Statement-II are correct and Statement-II is not the correct explanation for Statement-I

c) Statement-I is correct but Statements-II is incorrect

d) Statement-I is incorrect but Statement-II is correct

 

16. Which one of the following best describes the concept of ‘Small Farmer Large Field’?

a) Resettlement of a large number of people, uprooted from their countries due to war, by giving them a large cultivable land which they cultivate collectively and share the produce

b) Many marginal farmers in an area organize themselves into groups and synchronize and harmonize selected agricultural operations

c) Many marginal farmers in an area together make a contract with a corporate body and surrender their land to the corporate body for a fixed term for which the corporate body makes a payment of agreed amount to the farmers

d) A company extends loans, technical knowledge and material inputs to a number of small farmers in an area so that they produce the agricultural commodity required by the company for its manufacturing process and commercial production

 

17. Consider the following infrastructure sectors:

  1. Affordable housing
  2. Mass rapid transport
  3. Health care
  4. Renewable energy

On how many of the above does UNOPS Sustainable Investments in Infrastructure and Innovation (S3i) initiative focus for its investments?

a) Only one

b) Only two

c) Only three

d) All four

 

18. 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?

a) Only one

b) Only two

c) All three

d) None

 

19. Consider the following statements:

Statement-I: The soil in tropical rain forests is rich in nutrients

Statement-II: The high temperature and moisture of tropica rain forests cause dead organic matter in the soil to decompose quickly.


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

a) Both Statement-I and Statement- are correct and Statement- is the correct explanation for Statement-I.

b) Both Statement-1 and Statement- are correct and Statement-I is not the correct explanation for Statement-1.

c) Statement-l is correct but Statement-II is incorrect.

d) Statement-I is incorrect but Statement-II is correct.

 

20. With reference to coal-based thermal power plants in India, 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?

a) Only one

b) Only two

c) All three

d) None

 

21. Consider the following activities :

  1. Spreading finely ground best rock on farmlands extensively
  2. Increasing the alkalinity of by adding lime
  3. Capturing carbon dioxide released by various industries and pumping 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?

a) Only one

b) Only two

c) All three

d) None

 

22.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?

a) Only one

b) Only two

e) All three

d) None

 

23.  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?

a) Only one

b) Only two

c) All three

d) None

 

24. 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?

a) Both Statement-I and Statement-II are correct and Statement-II is the correct explanation for Statement-I.

b) Both Statement-1 and Statement-II are correct and Statement- II is not the correct explanation for Statement-I.

c) Statement-I is correct but Statement-II is incorrect.

d) Statement-I is incorrect but Statement-II is correct.

 

25. Consider the following statements:

  1. In Biodiversity the India, 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?

a) 1 only

b) 2 only

c) Both 1 and 2

d) Neither 1 nor 2

 

Answers

1

2

3

4

5

6

7

8

9

10

c

c

c

a

b

c

b

c

b

d

11

12

13

14

15

16

17

18

19

20

b

d

d

c

a

b

c

c

d

d

21

22

23

24

25

 

 

 

 

 

c

c

c

c

c