Consider the following:

  1. Carbon monoxide
  2. Nitrogen oxide
  3. Ozone
  4. Sulphur dioxide

Excess of which of the above in the environment is/are cause(s) of acid rain?

[UPSC Civil Services Exam – 2022 Prelims]

(a) 1, 2 and 3

(b) 2 and 4 only

(c) 4 only

(d) 1, 3 and 4


Answer: (b)

Explanation

Acid rain, or acid deposition, is a broad term that includes any form of precipitation with acidic components, such as sulfuric or nitric acid that fall to the ground from the atmosphere in wet or dry forms. This can include rain, snow, fog, hail or even dust that is acidic.

Sources of compounds causing acid rain:

Sulfur

  • Natural Resources: – Seas and oceans, Volcanic eruptions, Biological processes in the soil e.g., Decomposition of Organic matter
  • Man-made sources: – Burning of coal (60%), Petroleum products (30 % of S02) and smelting of metal sulfides ores to obtain the pure metals, Industrial production of sulphuric acid in metallurgical, chemical, and fertilizers industries.

Nitrogen

  • Natural Resources: – Lightning, Volcanic eruptions
  • Anthropogenic sources: – Forest fires, Combustion of Oil, Coal, And Gas

Consider the following statements:                                                                   The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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Consider the following statements:                                                         The Parliament of India can place a particular law in the Ninth Schedule of the Constitution of India. The validity of a law placed in the Ninth Schedule cannot be examined by any court and no judgement can be made on it. Which of the statements given above is/are correct?

Consider the following statements:                                               

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