First slide

Water Pollution and its Control

Question

The amount of biodegradable organic matter in sewage water can be estimated by measuring

Easy

A

Biochemical oxygen demand
B

The growth of anaerobic bacteria in water
C

Biogeological oxygen demand
D

pH of water

Solution

Biochemical oxygen demand is the measure of oxygen required by aerobic decomposers for biochemical degradation of the organic materials. BOD indicates the degree of organic pollution

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