Match List I with List II

List I (Environmental Degradation)
  1. Acid rain
  2. Automobile smoke
  3. Ozone Depletion
  4. Global warming
List II (Constituent Causing Degradation)
  • Oxide of sulphur
  • Carbon dioxide
  • Nitrogen oxide
  • Clorofluoro-carbon
Correct Answers
1. Oxide of sulphur 2. Carbon dioxide 3. Clorofluoro-carbon 4. Nitrogen oxide