What happens when sewage is discharged into a | vedclass

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(D) When sewage is discharged into a river,it introduces a large amount of organic matter.Microorganisms like bacteria decompose this organic matter,w

Vedclass · Accepted Answer

All of the above.

Vedclass · Answer

(D) When sewage is discharged into a river,it introduces a large amount of organic matter.Microorganisms like bacteria decompose this organic matter,which requires a significant amount of oxygen,leading to an increase in the Biological Oxygen Demand $(BOD)$.As the $BOD$ increases,the amount of dissolved oxygen in the water decreases.This depletion of dissolved oxygen causes the death of fish and other aquatic organisms due to suffocation.Therefore,all the given statements are correct.

What happens when sewage is discharged into a river?

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