Given below are two statements : One is labelled as Assertion (A) and the…
2020
Given below are two statements : One is labelled as Assertion (A) and the other is labelled as Reason (R) :
(A) : Global warming potential of a molecule of a greenhouse gas over different time spans of decades to 100 years may vary significantly.
Reason (R) : Some greenhouse gases have shorter life times compared to carbon dioxide.
In the light of the above statements, choose the most appropriate answer from the options given below :
- A.
Both (A) and (R) are correct and (R) is the correct explanation of (A)
- B.
Both (A) and (R) are correct but (R) is NOT the correct explanation of (A)
- C.
(A) is correct but (R) is not correct
- D.
(A) is not correct but (R) is correct
Attempted by 4 students.
Show answer & explanation
Correct answer: A
Global warming potential can vary over different time horizons because greenhouse gases differ in atmospheric lifetimes. Hence both A and R are correct, and R explains A.