Question

How do surface run offs from crop fields add to water pollution?
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Answer 1

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Runoff of nutrients, especially phosphorus, leading to eutrophication causing taste and odour in public water supply, excess algae growth leading to deoxygenation of water and fish kills. Leaching of nitrate to groundwater; excessive levels are a threat to public health.

Answer 2

Answer:

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Runoff of nutrients, especially phosphorus, leading to eutrophication causing taste and odour in public water supply, excess algae growth leading to deoxygenation of water and fish kills. Leaching of nitrate to groundwater; excessive levels are a threat to public health.