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Question : Assertion: Azolla pinnata is used as biofertiliser in rice cultivation.Reason: Azolla performs nitrogen fixation with the help of symbiotic bacteria Bacillus sp.

Answer»

If both ASSERTION and Reason are TRUE and the Reason is the correct EXPLANATION of the Assertion
If both Assertion and Reason are true and the Reason is not the correct explanation of the Assertion.
If Assertion is true but the Reason is false.
If both Assertion and Reason are false.

Answer :C


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