Question

Select the list of greenhouse gases mentioned in descending order of their abundance.

• A. N₂0 —6%, CO₂-86%
• B. Methane — 20%, N₂0 —18%
• C. CFCs-14%, Methane-20%
• D. CO₂-40%, CFCs-30%

Answer 1

The correct option is C

CFCs-14%, Methane-20%

The most abundant greenhouse gas in the atmosphere is carbon dioxide, followed by methane, nitrous oxide and then CFCs. Oxygen is not a greenhouse gas. Carbon monoxide is a very weak greenhouse gas, but has quite a few indirect effects on global warming.