1.

Assertion (A): Carbon compounds hold the key to plant and animal lite on the earth. Reason (R ): Carbon circulates through air, plants, animals and soil by means of complex reactions.

Answer»

Both (A) and (R ) are CORRECT
Both (A) and (R ) are WRONG
(A) is correct but (R ) is wrong
(A) is wrong but (R ) is correct

Answer :A


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