Why is discharge of untreated sewage into waternot desirable?
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If untreated sewage is discharged into rivers or seas, then the water in the rivers or seas would also get contaminated. If this contaminated water is used for drinking, then it can cause diseases such as cholera, typhoid, dysentery, etc. which may lead to death. ... Answer: Oils and fats harden and block the sewage pipes
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Discharge of untreated sewage into water bodies are not desirable because it urges water pollution which directly or indirectly affect not only animals but also we humans that can lead server calamity.
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