Question

(A) Methane leads to both global warming and photochemical smog
(B) Methane is generated from paddy fields
(C) Methane is a stronger global warming gas than $C{O}_2$
(D) Methane is a part of reducing smog

The statements that are true :

• A. (A), (B), (D) only
• B. (B), (C), (D) only
• C. (A) and (B) only
• D. (A), (B), (C) only

Answer 1

The correct option is D (A), (B), (C) only

• $C{H}_4$ causes global warming and also a constituent of photochemical smog. It is a part of oxidising smog.
• $C{H}_4$ is generated from paddy fields.
• Due to high heat capacity, $C{H}_4$ is a stronger global warming causing gas than $C{O}_2$.