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Write the effect on the characteristics of a river when urban sewage is discharged into it. - Biology (Theory)

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Question

Write the effect on the characteristics of a river when urban sewage is discharged into it.

Very Short Answer
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Solution

A precipitous drop of dissolved oxygen (DO) downstream from the sewage disposal location. Fish and other aquatic life die as a result, clean water organisms vanish, and algae blooms grow excessively.

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Chapter 18: Environmental Issues - TEST YOUR PROGRSS [Page 751]

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Nootan Biology [English] Class 12 ISC
Chapter 18 Environmental Issues
TEST YOUR PROGRSS | Q 25. | Page 751
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