Question

how do chemical fertilisers cause pollution explain in 5 to 6 lines

Answer 1

the harm chemical fertilizers may cause include waterway pollution, chemical burn to crops, increased air pollution, acidification of the soil and mineral depletion of the soil.
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Answer 2

Fertilizers and pesticides are among the many common stormwater pollutants that can degrade water quality. Though fertilizers contain chemicals that are good for lawns and plants when used properly, excessive amounts applied to lawns and gardens wash off and pollute streams.