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UPSC Civil Services Prelims Mock Test Paper
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PS: Questions selected from topics in : History, Geography, Economics, Polity and Environment by Samiran Saikia. Post your scores/feedback through comments.
UPSC Civil Services Prelims Mock Questions (GS) - Test 7
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Which of the following is / are sources of methane?
1, 2 and 3
1 and 3
2 and 4
All the above
Question 1 Explanation:
Natural sources of methane include wetlands, gas hydrates, permafrost, termites, oceans, freshwater bodies, non-wetland soils, and other sources such as wildfires. Methane emissions come from the decomposition of wastes in landfills, ruminant digestion and manure management associated with domestic livestock, natural gas and oil systems, and coal mining.
Identify the correct statement regarding global warming:
Evaporation contributes to global warming.
Urine of livestock can contribute to global warming
None of the above
Question 2 Explanation:
Evaporation increases the concentration of water vapor in atmosphere and urine emanates nitrous oxide both of which are green house gases.
Identify the correct sentence regarding Shola forests.
Shola Forests are found in eastern and southern India.
They are found in valleys.
They are separated from one another by montane grassland.
They helps in preservation of water.
All the above
3 and 4
1, 2 and 3
2, 3 and 4
Question 3 Explanation:
Shola forests are found in South India (in Nilgiri and Palani hills of Tamilnadu, Kerala and Karnataka.)