UPSC 2010 › Environment & Ecology › Pollution & Waste Management

2 questions · 2010 · answers as per the UPSC key

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UPSC 2010 · Q23 · Environment & Ecology › Pollution & Waste Management · Save

A pesticide which is a chlorinated hydrocarbon is sprayed on a food crop. The food chain is: Food crop – Rat – Snake – Hawk. In this food chain, the highest concentration of the pesticide would accumulate in which one of the following?

(a) Food crop
(b) Rat
(c) Snake
(d) Hawk
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Answer: (d) Hawk
UPSC 2010 · Q38 · Environment & Ecology › Pollution & Waste Management · Save

Consider the following:

  1. Oxides of Hydrogen
  2. Oxides of Nitrogen
  3. Oxides of Sulphur

Which of the above causes/cause acid rain?

(a) 1 and 2 only
(b) 3 only
(c) 2 and 3 only
(d) 1, 2 and 3
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Answer: (c) 2 and 3 only