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Question
High BOD indicates
High BOD indicates
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Solution
The correct option is A Highly polluted water
Definition of BOD
Biochemical oxygen demand (BOD) is the amount of dissolved oxygen required by aerobic bacteria to oxidise the organic matter present in the sample water at a specific period of time and temperature.
Significance of BOD
If the BOD levels in a water sample is more than the limit, the organic matter present is more, indicating more pollution. If BOD levels are less, the pollution levels are less.
Final answer:
(A) Highly polluted water
Definition of BOD
Biochemical oxygen demand (BOD) is the amount of dissolved oxygen required by aerobic bacteria to oxidise the organic matter present in the sample water at a specific period of time and temperature.
Significance of BOD
If the BOD levels in a water sample is more than the limit, the organic matter present is more, indicating more pollution. If BOD levels are less, the pollution levels are less.
Final answer:
(A) Highly polluted water
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