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Protecting Water From Pollution

Explains why keeping water from being polluted is preferable to cleaning it after being polluted, and what has happened since the passage of the Clean Water Act in the U.S.

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Earth Science Human Impacts on the Earth's Environment
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    Contaminants in the Water Cycle Lesson Plan
    Community Contributed
    Students review the water cycle, investigate how the water supply of a region can become contaminated, and suggest possible ways to improve water quality.
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