UPSC 2013 › Environment & Ecology › Pollution & Waste Management

3 questions · 2013 · answers as per the UPSC key

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UPSC 2013 · Q29 · Environment & Ecology › Pollution & Waste Management · Save

Due to improper/indiscriminate disposal of old and used computers or their parts, which of the following are released into the environment as e-waste?

  1. Beryllium
  2. Cadmium
  3. Chromium
  4. Heptachlor
  5. Mercury
  6. Lead
  7. Plutonium

Select the correct answer using the codes given below:

(a) 1, 3, 4, 6 and 7 only
(b) 1, 2, 3, 5 and 6 only
(c) 2, 4, 5 and 7 only
(d) 1, 2, 3, 4, 5, 6 and 7
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Answer: (b) 1, 2, 3, 5 and 6 only
UPSC 2013 · Q30 · Environment & Ecology › Pollution & Waste Management · Save

Acid rain is caused by the pollution of environment by

(a) carbon dioxide and nitrogen
(b) carbon monoxide and carbon dioxide
(c) ozone and carbon dioxide
(d) nitrous oxide and sulphur dioxide
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Answer: (d) nitrous oxide and sulphur dioxide
UPSC 2013 · Q49 · Environment & Ecology › Pollution & Waste Management · Save

Photochemical smog is a resultant of the reaction among

(a) NO₂, O₃ and peroxyacetyl nitrate in the presence of sunlight
(b) CO, O₂ and peroxyacetyl nitrate in the presence of sunlight
(c) CO, CO₂ and NO₂ at low temperature
(d) high concentration of NO₂, O₃ and CO in the evening
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Answer: (a) NO₂, O₃ and peroxyacetyl nitrate in the presence of sunlight