Question

Which of these is NOT classified as a greenhouse gas?

• A. Methane
• B. Carbon dioxide
• C. Water Vapour
• D. CFC

Answer 1

The correct option is C

Water Vapour

Explanation for correct option:

C. Water vapor

Greenhouse gas:

• Greenhouse gases are responsible for the greenhouse effect.
• The gases that absorb and emit energy within the thermal infrared range.
• The primary greenhouse gases include carbon dioxide, methane, etc.
• While the secondary greenhouses are Sulfur dioxide as well as nitrogen oxides.

Water vapor is not considered a greenhouse gas as it doe not pollute the atmosphere.

The explanation for incorrect options:

Methane, Crabondioixde, and Chlorofluorocarbons(CFC) are greenhouse gases. Thus Options A, B, and D are incorrect.

Hence, the correct option is B i.e. water vapor.