and
2. What is sewage? Explain why it is harmful to discharge untreated
sewage into rivers or seas.
Answers
Answered by
0
Answer:
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
35
Answer:
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. It is therefore dangerous to release untreated sewage in water.
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