Huge amount of sewage is dumped into a river the Biological Oxygen Demand will........

Environment and Ecology Water Pollution

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Huge amount of sewage is dumped into a river, the Biological Oxygen Demand will

Increase

Decrease

Remain unchanged

Slightly decrease

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Explanation:

Huge amount of sewage is dumped into a river, the BOD will increase.
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.