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There is a wide category of substances that can contaminate water.these may be from human sources like urine and feaces.It can be chemicals such as pesticides weedicide insecticides.Others may include organic chemicals like acids ,esters,or wastes from factories.Some may be non biodegradeable substances or heavy metals.
Wiki User
∙ 13y ago
Wiki User
∙ 11y agopeople urinating in it, people in rural areas bathing in the rivers, people throwing rubbish in the rivers or dams, people doing their washing in the rivers or dams, drainage pipes leading to the oceans, rivers or dams
Wiki User
∙ 11y agofeaces and also urine can contaminate water,
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