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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. |
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