Teaching UGC NET Mock Test Series 2025 (Paper 1 & 2) Environmental Science Environmental Issues Global Environmental Issues
Given below are two statements - one is labelled as Assertion (A) and the other is labelled as Reason (R).
Assertion (A): The increase in sea water acidity makes building and maintaining shells and other calcium carbonate structures difficult for calcifying organisms such as oyster and water corals.
Reasons (R): Increase in sea water acidity causes a decrease in bicarbonate ion concentration.
In the light of above two statements, choose the correct option:
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.