11. Which of the following is /are the possible consequence/s of heavy sand mining in river beds?
1. Decreased salinity in the river
2. Pollution of groundwater
3. Lowering of the water- table
Select the correct answer using the code given below:
a) 1 only
b) 2 and 3 only
c) 1 and 3 only
d) 1, 2 and 3
Answer. b)
12. With reference to agricultural soils, consider the following statements:
1. A high content of organic matter in soil drastically reduces its water-holding capacity.
2. Soil does not play any role in the sulfur cycle.
3. Irrigation over a period of time can contribute to the salinization of some agricultural lands.
Which of the statements given above is/are correct?
a) 1 and 2 only
b) 3 only
c) 1 and 3 only
d) 1, 2 and 3
Answer. b)
13. The Partnership for Action on Green Economy (PAGE), a UN mechanism to assist countries transition towards greener and more inclusive economies, emerged at
a) The Earth Summit on Sustainable Development 2002, Johannesburg
b) The United Nations Conference on Sustainable Development 2012, Rio de Janeiro
c) The United Nations Framework Convention on Climate change 2015, Paris
d) The World Sustainable Development Summit 2016, New Delhi
Answer. b)
14. Consider the following pairs:
Regions sometimes mentioned in the news - Country
1. Catalonia Spain
2. Crimea Hungary
3. Mindanao Philippines
4. Oromia - Nigeria Which of the pair given above are correctly matched?
a) 1, 2 and 3
b) 3 and 4 only
c) 1 and 3 only
d) 2 and 4 only
Answer. c)
15. In which one of the following states is Pakhui Wildlife Sanctuary located?
a) Arunachal Pradesh
b) Manipur
c) Meghalaya
d) Nagaland
Answer. A)
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