what is sewage? explain why it is harmful to discharge untreated sewage into rivers or seas?
Answers
Answered by
6
Sewage is a liquid containing wastes which is disposed by households, industrial and agricultural activities in water. It is harmful to discharge untreated sewage into rivers or seas because it can pollute the whole sources of water. Sewage contains harmful substances and disease causing organisms.
Answered by
4
Answer:
The bacteria in human waste, such as E. coli, can infect the water and cause disease. Other harmful solids and chemicals in sewage can damage bodies of water that support wildlife. ... Sewage needs to be treated so that it doesn't impact the environment.
It must be treated it must be treated because it would affect the environment
Similar questions