Sewage | सीवेज | Biology

Sewage is a water-carried waste matter that is discarded away in sewers and drains. It is also known as domestic or municipal wastewater. Sewage can be harmful due to several reasons:
1) It includes wastes containing organic matter and microbes which are pathogenic and can cause several water-borne diseases.
2) Sewage provides a breeding place for disease-causing harmful insects and microbes.
3) Sewage is a major cause of polluting drinking water.
4) When sewage enters a lake or stream, it destroys or pollutes the water body affecting the organisms present in the water bodies.

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Видео Sewage | सीवेज | Biology канала Toppr Class 8-10