A) DO and BOD
B) BOD and turbidity
C) DO and acidity
D) Hardness and alkalinity
Correct Answer: B
Solution :
Biological Oxygen Demand (BOD) and turbidity are the most correct and precise assessments for the determination of water pollution. BOD indicates the deficiency of oxygen, which is required for the maintenance of biological community and turbidity indicates the presence of particulate substances in the water body.
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