UGC-NET-Paper1

Assertion (A): Since pre-industrial times carbon dioxide has contributed maximum to the global warming.
Reason (R): Carbon dioxide has highest Global Warming Potential (GWP).
below:

1. Both (A) and (R) are correct and (R) is the correct explanation of (A).
2. Both (A) and (R) are correct and (R) is NOT the correct explanation of (A)
3. (A) is correct but (R) is not correct.
4. (A)is not correct but (R) is correct.