Given below are two statements, one labelled as Assertion (A) and the other as Reason (R). In the light of the above statements, choose the most appropriate answer from the options given below.
Assertion (A):A rise in water temperature from normal levels, due to thermal pollution, can adversely affect water quality and aquatic life.
Reason (R):Oxygen solubility in water increases as temperature increases.
ABoth A and R are correct and R is the correct explanation of A
BBoth A and R are correct but R is not the correct explanation of A
CA is correct but R is not correct ✓ Correct
DA is not correct but R is correct
Correct answer: (C) A is correct but R is not correct
Explanation
The assertion is correct, as thermal pollution raising water temperature harms water quality and aquatic life.
Warmer water stresses fish and speeds up harmful biological and chemical processes.
The reason is wrong, because oxygen solubility in water falls, not rises, as temperature increases.
Warmer water holds less dissolved oxygen, worsening the harm the assertion describes.
The reason contradicts the actual oxygen-temperature relationship.
Reduced oxygen from warming is a key reason thermal pollution stresses aquatic ecosystems.
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