Home PYQs UPPSC UPPSC MCQs Prelims 2003 (GS Paper I)

Question

Acid rain is caused by:

  1. cooling of acid vapours reaching the clouds
  2. reaction between rain water and carbon dioxide pollutants
  3. reaction between cloud water and sulphur dioxide pollutants
  4. reaction between water vapours and electric charge during lightning and cloud hursts

Answer:

Option C: reaction between cloud water and sulphur dioxide pollutants

Detailed Solution:

The correct answer is “reaction between cloud water and sulphur dioxide pollutants”.

Acid rain is caused by: (3) reaction between cloud water and sulphur dioxide pollutants