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Chlorine is a chemical added to water supplies to kill microorganisms. Microorganisms are tiny living things like bacteria, viruses, and protozoans that cannot be seen with the naked eye.Cholera, typh ...
How to reduce pollution and clean up polluted water.
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Learn about how seashells can be used as a low-cost method for removing heavy metal contaminants from drinking water.
It is an educational content of CK-12 Foundation (to access some of the CK-12 conte ...
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