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 correct answer from the options given below.
Assertion (A):Some persistent organic pollutants (POPs) have become extremely widespread and are found from the tropics to the poles.
Reason (R):They often accumulate in food webs and reach high concentrations in long-living top predators.
ABoth A and R are correct and R is the correct explanation of A ✓ Correct
BBoth A and R are correct but R is not the correct explanation of A
CA is correct but R is not correct
DA is not correct but R is correct
Correct answer: (A) Both A and R are correct and R is the correct explanation of A
Explanation
Both the assertion and the reason are correct, and the reason explains the assertion.
The assertion holds, as persistent organic pollutants now spread from the tropics to the poles.
The reason holds, since they accumulate in food webs and concentrate in long-living top predators.
Their persistence and resistance to breakdown let them travel and linger far and wide.
Fat solubility drives their build-up along successive feeding levels.
This is why POPs are tightly regulated under the Stockholm Convention.
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