BOD Biochemical Oxygen Demand is defined as........

Environment and Ecology Water Pollution

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BOD (Biochemical Oxygen Demand) is defined as

Amount of oxygen consumed by micro-organisms for decaying organic matter per unit volume of water

Amount of Carbon Dioxide consumed by micro-organisms per unit of sewage water

Amount of oxygen required by aquatic plants for survival

None of the above

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Explanation:

Biochemical oxygen demand (BOD, also called biological oxygen demand) is the amount of dissolved oxygen needed (i.e., demanded) by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.