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प्रश्न
With the help of a well labelled diagram explain how the accumulation of toxic substances increases as we move up the food chain.
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उत्तर
Nitrogenous fertilizers produce the toxic concentration of nitrate and nitrite in the leaves, which are eaten by animals and as; vegetables by men, which is very harmful for health. Eutrophication is dangerous to marine life and the secondary consumers eating fish etc. are also adversely affected through complicated diseases. Harmful pathogens are transferred to humans through vegetables and fruits.
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