Question

Assertion (A) -Accumulation of harmful chemicals is maximum in case of organisms at

higher trophic level.

Reason(R): Food chain normally does not go beyond 3 or 4 trophic level.​

Answer 1

Answer:

$The \: Assertion \: and \: the \: Reason \\ \: are \: correct \\ \: but \: the \: Reason \: is \: not \: the \: correct \\ \: explanation \: of \: the \: Assertion.$

Explanation:

Assertion (A) -Accumulation of harmful chemicals is maximum in case of organisms at

higher trophic level.

Reason(R): Food chain normally does not go beyond 3 or 4 trophic level.

• The biological magnification is maximum in the final or last tropic level.As the amount of toxic items gets accumulated.

• The loss of energy at each step of food chain is so great that very little usable energy remains after four trophic levels. Hence, food chains generally consist of . only three or four steps.

From these explanation,we got to know about that Both Assertion(A) and Reason(R) are true but the reason is not the correct explanation for the assertion because the reason didn't talk about why there is harmful accumulation in the higher trophic levels.

Answer 2

Answer : a and r both are true but r isnot the correct explanation of a

Explanation: