Question

4. The untreated human excreta is a health hazard, thus toilets should be
constructed to maintain personal hygiene. Don't​

Answer 1

Answer:

Untreated human excretions are a health hazard. It causes pollution of soil and water including underground water. ·

Explanation:

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Answer 2

Answer:

Untreated human excretions are a health hazard. It causes pollution of soil and water including the underground water. Thus, it contaminates the sources of water from which people collect water for drinking and household purposes. When this contaminated water is used for drinking, it can cause diseases such as cholera, typhoid, hepatitis, dysentery, etc., which may even lead to death.