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What happens to the concentration of DDT in each trophic level?

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in Biology – Class 12 by (271k points)
What happens to the concentration of DDT in each trophic level?

(a) Decrease

(b) Increases

(c) Remains unchanged

(d) Becomes zero

The question was asked in semester exam.

My query is from Environmental Issues in section Environmental Issues of Biology – Class 12

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Best answer
Correct answer is (b) Increases

The best I can explain: Sometimes there is the accumulation of certain pollutants (toxins) in the tissues of organisms whose concentration increases along the food chain; this process of increasing accumulation of toxins is known as bioamplification or biomagnification. An example is DDT whose concentration increases at each trophic level.

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