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What do you mean by Biochemical Oxygen Demand (BOD)?

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Biochemical Oxygen Demand (BOD) is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to breakdown organic material present in a given water sample at certain temperature over a specific time period.

Final answer:
It is the amount of dissolved oxygen needed by aerobic biological organisms in a body of water to break down organic material present in a given water sample at a certain temperature over a specific time period.

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