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Wastewater Story
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13/07/2021 3:41 pm
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Untreated human excreta is a health hazard. Explain.
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13/07/2021 3:42 pm
Untreated human excreta can cause a lot of health related problems. It pollutes water, air and soil. The polluted water contain disease causing bacteria which can spread epidemics like cholera, meningitis etc.