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Question

Increase in the concentration of pollutants (toxicant) in higher trophic levels is called:


A
Recycling
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B
Eutrophication
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C
Biodegradation
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D
Biomagnification
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Solution

The correct option is D Biomagnification
Persistent pesticides e.g., organochlorines or chlorinated hydrocarbons, like DDT, pass into the food chain and increase in the amount per unit weight of organisms with the rise in trophic level due to their accumulation in tissues of animals. This phenomenon is called biomagnification.
So, the correct answer is 'D'.

Biology

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