UPSC Prelims Previous Year Papers (Solutions)

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Solution of the UPSC Prelims 2011 General Studies Paper

Click Here for Solution 2012 1. Biodiversity forms the basis for human existence in the following ways : 1. Soil formation. 2. Prevention of soil erosion. 3. Recycling of waste. 4. Pollination of crops. Select the correct answer using the codes given below : (a) 1,2,and 3 only. (b) 2,3 and 4 only. (c)     1 ..