Assertion: BOD is a measure of the organic matter present in the water. Reason: BOD refers to the amount of the oxygen that would be consumed if all the organic matter in one litre of water were oxidised by bacteria.
- AAssertion and reason both are true and the reason is correct explanation of assertion.
- BAssertion and reason both are true but reason is not correct explanation of assertion.
- CAssertion is true but reason is wrong.
- DAssertion and reason both are wrong.
✓ Correct answer: A
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