Organisms and PopulationHard

Question

A lake which is rich in organic waste may result in

Options

A.

Increased population of aquatic organisms due to minerals

B.

Drying of the lake due to algal bloom

C.

Increased population of fish due to lots of nutrients

D.

Mortality of fish due to lack of oxygen

Solution

Micro-organisms involved in biodegradation of organic matter consume oxygen as a result there is a sharp decline in oxygen causing mortality of fish and other aquatic creatures.

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