A lake which is rich in organic waste may res | vedclass

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(D) : High amount of organic waste in a lake will trigger and activate decomposer microbes,which will decompose the organic waste.Biochemical Oxygen D

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mortality of fish due to lack of oxygen

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(D) : High amount of organic waste in a lake will trigger and activate decomposer microbes,which will decompose the organic waste.Biochemical Oxygen Demand $(BOD)$ of this lake will shoot up,and decomposers will utilize most of the dissolved oxygen present in the lake.Consequently,the level of dissolved oxygen will decrease to an alarming extent.Aquatic animals like fish,which totally depend on the oxygen dissolved in water,will ultimately die due to suffocation.

$A$ lake which is rich in organic waste may result in

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