1.

(A) The reactions taking place in the sun are nuclear fusion reactions. (R ) The main reason for nuclear fusion reaction in the sun is that H_(2) is present in the sun's atomosphere so that hydrogen nuclei can fuse to form helium.

Answer»

If both (A) and (R ) are CORRECT and (R ) is the correct EXPLANATION for (A).
If both (A) and (R ) are correct but (R ) is not the correct explanation for (A )
If both (A) and (R ) are incorrect.
If both (A) and (R ) are incorrect.

Answer :C


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