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Question :Assertion : BOD indicates the extent of water pollution by organic wastes. Reason: Increase in BOD decrease dissolved oxygen of waste water.

Answer»

If both Assertion and REASON are true and Reason is a CORRECT explanation of Assertion.
If both Assertion and Reason are true but Reason is not a correct explanation of Assertion
It Assertion and true but Reason is false.
If both Assertion and Reason are false.

Answer :B


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