Question

Which of the following pairs of gases is mainly responsible for green house effect ?

• A. Nitrogen and Sulphur dioxide
• B. Carbon dioxide and Methane
• C. Ozone and Ammonia
• D. Oxygen and Nitrogen

Answer 1

Answer: (B)

Carbon dioxide and Methane

Answer 2

Relative contribution of various greenhouse gases to total global warming is $\bullet \; CO_2 = 60 \%$ $\bullet \; CH_4 = 20 \%$ $\bullet \; CFC= 14 \%$ $\bullet \; N_2O = 6 \%$ $\Rightarrow \;$ Therefore ${CO_2}$ and ${CH_4}$ are the major greenhouse gases