Question

1. What is the environment effect caused by sewage?​

Answer 1

Answer:

If sewage is only partially treated before it is disposed of, it can contaminate water and harm huge amounts of wildlife. Alternatively, leaking or flooding can cause completely untreated sewage to enter rivers and other water sources, causing them to become polluted. The consequences aren't great.

Sewage. Human sewage is another source of water pollution. If untreated sewage gets into rivers, microorganisms decompose it. ... As a result there is less oxygen dissolved in water, so aquatic organisms such as fish and insects may be unable to survive.

Answer 2

Answer:

Enviroment is harmed by the sewage as the untreated waste is dumped in to the river which causes water pollution.

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