Home PYQs UPPSC UPPSC MCQs Prelims 2016 (GS Paper I)

Question

Which one of the following gases is not a green house gas?

  1. CO2
  2. NO2
  3. CH4
  4. O2

Answer:

Option D: O2

Detailed Solution:

The correct answer is “O2”.

O2, which stands for molecular oxygen, is not considered a greenhouse gas.