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Answer:

Bacteria and Parasites from Sewage. If sewage is improperly treated it can contaminate water with a variety of bacteria and other parasites.

Industrial Waste. ..

Fertilizer and Lawn Chemicals. ...

Silt and Soil. ...

Humans and Water Pollution Through Detergents. ...

Petrochemicals Contribute to Water Pollution.

Explanation:

Answer:

Sources of pollution can be natural, but they are often human-related. Dirt, bacteria, and fertilizer are all sources of water pollution.

Explanation:

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