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Question

Phenomenon where the pollutants pass in the higher concentration through the food chain and accumulate in maximum ammount in the final consumer is called as

A
Biological degradation
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B
Biological magnification
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C
Eutrophication
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D
Bio-geochemical cycle
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Solution

The correct option is B Biological magnification
Biological magnification is process of movement of toxic or poisonous substances in increasing concentration while moving up the food chain.
An example of biological magnification and it's dangers is any small fish that eats plankton that has been tainted with mercury. Hundreds of small fish might then contain just few parts of the mercury, not enough to cause major harm. A bird then might eat hundreds of the small fish, so that now instead of 200 ppm in a single fish, that bird has much higher levels of mercury. The toxin amplifies as it moves up the food chain.

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