Science, asked by armanchulbul1, 10 months ago

Answer the same..
This question is important for board exams....​

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Answered by Anonymous
1

Answer: lack of sewage management is shown in the picure

secondary or biological treatment of sewage is done by microbes, usually flocs( mass of bacteria associated with fungal filament ) is used

Explanation:

Answered by Pavqn147
0

Answer:

A luck of damage shown in the picture that makes water pollutes

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