21. With reference to a conservation organization called 'Wetlands International', which of the following statements is/are correct?
1. It is an intergovernmental organization formed by the countries which are signatories to Ramsar Convention.
2. It works at the field level to develop and mobilize knowledge, and use practical experience to advocate for better policies.
Select the correct answer using the code given below.
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Answer. b)
22. Which of the following phenomena might have influenced the evolution of organisms?
1. Continental drift
2. Glacial cycles
Select the correct answer using the code given below.
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Answer. c)
23. Other than poaching, what are the possible reasons for the decline in the population of Gangas River Dolphins?
1. Construction of dams and barrages on rivers
2. Increase in the population of crocodiles in rivers.
3. Getting trapped in fishing nets accidentally
4. Use of synthetic fertilizers and other agricultural chemicals in crop fields in the vicinity of rivers
Select the correct answer using the code given below.
a) 1 and 2 only
b) 2 and 3 only
c) 1, 3, and 4 only
d) 1, 2, 3 and 4
Answer. c)
24. Brominated flame retardants are used in many household products like mattresses and upholstery. Why is there some concern about their use?
1. They are highly resistant to degradation in the environment.
2. They are able to accumulate in humans and animals.
Select the correct answer using the code given below.
a) 1 only
b) 2 only
c) Both 1 and 2
d) Neither 1 nor 2
Answer. c)
25. If you walk through the countryside, you are likely to see some birds stalking alongside the cattle to seize the insects disturbed by their movement through grasses. Which one of the following is/are such bird/birds?
1. Painted Stork
2. Common Myna
3. Black-necked Crane
Select the correct answer using the code given below.
a) 1 and 2
b) 2 only
c) 2 and 3
d) 3 only
Answer. B)
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