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The top documents tagged [point source pollutants]
What is a Watershed? A watershed is an area of land that drains downhill to a body of water, such as a stream, lake, river or wetland. A watershed is an
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How does pollution affect human health? How can we detect pollution & its impact on environmental health?
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Human Waste Disposal More than 500 pathogenic bacteria, viruses, and parasites can travel from human or animal excrement through water. Natural Processes
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Environmental Health
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