1.

What harm can dumping of untreated sewage into river cause? ​

Answer»

Untreated SEWAGE contains many HARMFUL microorganisms like bacteria, parasites, viruses and fungi. When dumped into the river untreated, it can potentially infect HUMAN beings with DISEASES such as diarrhoea, DYSENTERY, cholera, typhoid and jaundice.Explanation:thank my ans



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