Explain how the sun releases enormous amounts of heat energy. a) hydrogen atoms fuse into larger helium atoms and release energy in the form of solar radiation. b) helium atoms split into smaller hydrogen atoms and release energy in the form of solar radiation. c) hydrogen atoms split into smaller particles. energy is converted from lost mass into solar radiation. d) helium atoms fuse into larger gas particles. the partial mass lost is converted into energy under immense pressure.

A) Hydrogen atoms fuse into larger helium atoms and release energy in the form of solar radiation.

Explanation:

Nuclear fusion is a process which involves the conversion of two small nuclei to form a heavy nuclei along with release of energy.

Nuclear fission is a process which involves the conversion of a heavier nuclei into two or more small and stable nuclei along with the release of energy.

The reactions which takes place in sun:

Overall reaction for the above series of reactions is given by:

Thus in the given reaction as the a heavier nuclei helium is being formed from combination of lighter hydrogen nuclei, this is a nuclear fusion reaction.

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