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Question :Assertion: The earliest organisms that appeared on the earth were non-green and presumably anaerobes. Reason: The first autotrophic organisms were the chemoautotrophs that never released oxygen.

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 :B


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