Assertion: Nitrogen fixing bacteria of legume root nodules survive in oxygen depleted cells. Reason: Leghaemoglobin completely removes oxygen from nodule cells

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Question:
Assertion: Nitrogen fixing bacteria of legume root nodules survive in oxygen depleted cells.
Reason: Leghaemoglobin completely removes oxygen from nodule cells

1.If both the assertion and reason are true and reason explains the assertion

2.If both the assertion and reason are true but reason does not explain the a

3. If assertion is true but reason is false

4. If assertion is false but reason is true.

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