1.

What is sewage? Explain why it is harmful to discharge untreated sewage into rivers or seas?

Answer»

1. All the waste water released by homes, industries, hospitals, offices and other users are collectively called Sewage. 

2. Sewage is a liquid waste. 

3. Most of it is water, which has dissolved and suspended impurities, disease-causing bacteria and other microbes. These impurities are called contaminants. 

4. If this is discharged into canals, it causes a lot of harm to animals, human beings, aquatic animals and plants if this water used.



Discussion

No Comment Found