1.

Secondary productivity is rate of formation of new organic matter by:A. If both Assertion &Reason are true and the reason is the corect explanation of the assertion , then mark (1)B. If both Assertion & Reason are true but the reason, is not the correct explanation of the assertion , then mark (2)C. If Assertion is true statement but Reason is false , them mark (3).D. If both Asseration and Reason are false statements , then mark (4).

Answer» Correct Answer - A


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