Question

how water pollution is caused by fertilizers

Answer 1

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Fertilizers and animal manure, which are both rich in nitrogen and phosphorus, are the primary sources of nutrient pollution from agricultural sources. Excess nutrients can impact water quality when it rains or when water and soil containing nitrogen and phosphorus wash into nearby waters or leach into ground waters.

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Answer 2

Fertilizer are made up of chemicals and chemicala are not good for living things directly hence pollute the water and it effects on animals who drink the water.