Question

how does agricultural waste lead to eutrophication​

Answer 1

Answer:

Eutrophication  is caused by human activities which contributes excessive nitrogen and phosphorous into water sources. Agricultural  waste is a main cause of this because that waste contains many chemical fertilisers   in it which were used before in the fields for plants growth . These fertilisers contain specific amount of nitrogen and phosphorous and when these run off on the surface and joins water source ,they lead to eutrophication.

Answer 2

When chemicals such as fertilizers

and pesticides are mixed up with water and flow down into rivers and canals pose serious damages to aquatic animals. This nutrient rich water promotes the growth of weeds resulting in eutrophication.

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