Previous year MCQs

Environment & Ecology UPPSC 2014 GS-I
Question

Which one of the following is not responsible for the extinction of a species?

Answer & Solution

Answer: (Detailed Solution Below)

Option A: Broad niche

Detailed Solution:

The correct answer is “Broad niche”.
A broad niche means that a species can adapt to a wide range of environmental conditions and utilize various resources, which can actually help in its survival.

In contrast, a narrow niche may make a species more vulnerable to extinction due to its dependence on specific conditions or resources.

Large body size and lack of genetic variability can also increase the risk of extinction.

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Select the correct answer from the codes given below.
Codes:
  1. A) 1 and 2
  2. B) 1, 2 and 3
  3. C) 2, 3 and 4
  4. D) All the four