Given below are two statements, one is labelled as Assertion (A) and the other as Reason (R):
Assertion (A): An ecosystem is a functional unit of nature where living organisms interact among themselves and also with the surrounding physical environment.
Reason (R): There is an exchange of materials and energy within the ecosystem as well as between adjoining ecosystems.
Select the correct answer using the codes given below.
1
Both (A) and (R) are true and (R) is correct explanation of (A)
2
Both (A) and (R) are true, but (R) is not correct explanation of (A)
3
(A) is true, but (R) is false
4
(A) is false, but (R) is true