Home PYQs UPPSC UPPSC MCQs Prelims 2013 (GS Paper I)

Question

Which of the following group of gases contribute to the "Green House Effect"?

  1. Ammonia and Ozone
  2. Carbon monoxide and Sulphur dioxide
  3. Carbon tetrafluoride and Nitrous oxide
  4. Carbon dioxide and Methane

Answer:

Option D: Carbon dioxide and Methane

Detailed Solution:

The correct answer is “Carbon dioxide and Methane”.

The main green houses are gases – water-vapor, CFCs, CO2, Nitrous Oxide, methane, ozone.