UPSC 2011 › Environment & Ecology › Pollution & Waste Management

2 questions · 2011 · answers as per the UPSC key

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UPSC 2011 · Q2 · Environment & Ecology › Pollution & Waste Management · Save

Consider the following:

  1. Carbon dioxide
  2. Oxides of Nitrogen
  3. Oxides of Sulphur

Which of the above is/are the emission/emissions from coal combustion at thermal power plants?

(a) 1 only
(b) 2 and 3 only
(c) 1 and 3 only
(d) 1, 2 and 3
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Answer: (d) 1, 2 and 3
UPSC 2011 · Q9 · Environment & Ecology › Pollution & Waste Management · Save

The formation of ozone hole in the Antarctic region has been a cause of concern. What could be the reason for the formation of this hole?

(a) Presence of prominent tropospheric turbulence; and inflow of chlorofluorocarbons
(b) Presence of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons
(c) Absence of polar front and stratospheric clouds; and inflow of methane and chlorofluorocarbons
(d) Increased temperature at polar region due to global warming
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Answer: (b) Presence of prominent polar front and stratospheric clouds; and inflow of chlorofluorocarbons