Ncert Exercises & Solutions

Given below are two statements:

Assertion (A):	Carbon dioxide is one of the important greenhouse gases.
Reason (R):	It is largely produced by the respiratory function of animals and plants.

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