Our food grain such as wheat and rice, the vegetable and fruit and even meat are found to contain , carrying amount of pesticides residues.state the reason to explain how and why it happens?
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to grow crops farmers use pesticides and fertilizers. by researchers its been found that only 45% of them help in the growth of the crop. but the remaining just remains on their surface, when they r harvested these pesticides and all come along with them and by their intake our heat gets affected. the grains are eaten by animals, birds also have these farm aids. in this way, it enters the digestive canal and spoils health.
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Answer: This occurs due to a natural phenomenon known as BIOLOGICAL MAGNIFICATION.
Explanation: Biological magnification is defined as the accumulation of chemical substances progressively at each trophic level in a food chain.
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