Question

What do you mean by biological magnification?

Answer 1

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➡ Biological magnification often refers to the process whereby certain substances such as pesticides or heavy metals move up the food chain, work their way into rivers or lakes, and are eaten by aquatic organisms such as fish, which in turn are eaten by large birds, animals or humans.

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Answer 2

$\huge\mathfrak{Answer}$

Several chemicals and pesticides are used to protect crops from diseases. These chemicals are either washed down into the soil or into the water bodies. These chemicals are absorbed by plants with water and minerals. In this way they enter food chains.

As human beings occupy the top level in any food chain, the maximum concentration of these chemicals get accumulated in our bodies. This phenomenon is known as biological magnification.