Question

why is discharge of untreated sewage into water bodies not desirable

Answer 1

Discharge of untreated sewage into water bodies are not desirable because it urges water pollution which directly or indirectly affect not only animals but also we humans that can lead server calamity.

Answer 2

Explanation:

It is harmful to discharge the untreated sewage into the water bodies as it contains harmful substances. Most of it is water which has dissolved and suspended impurities which may pollute the water bodies and also harm the aquatic plants and animals.