Environment And Its Components PYQs — 4 UPSC CSE Previous Year Questions

Question 1

Consider the following statements : Some microorganisms can grow in environments with temperature above the boiling point of water. Some microorganisms can grow in environments with temperature below the freezing point of water. Some microorganisms can grow in highly acidic environment with a pH below 3. How many of the above statements are correct?

Accepted Answer

C. All three

Question 2

With reference to an initiative called 'The Economics of Ecosystems and Biodiversity (TEEB)', which of the following statements is/are correct? It is an initiative hosted by UNEP, IMF and World Economic Forum. It is a global initiative that focuses on drawing attention to the economic benefits of biodiversity. It presents an approach that can help decision-makers recognize, demonstrate and capture the value of ecosystems and biodiversity. Select the correct answer using the code given below.

Accepted Answer

C. 2 and 3 only

Question 3

Which one of the following is the best description of the term 'ecosystem'?

Accepted Answer

C. A community of organisms together with the environment in which they live

Question 4

Which one of the following terms describes not only the physical space occupied by an organism, but also its functional role in the community of organisms?

Accepted Answer

B. Ecological niche