Question

difference between fission and fusion .And which one occur in sun

Answer 1

Both fission and fusion are nuclear reactions that produce energy, but the applications are not the same. Fission is the splitting of a heavy, unstable nucleus into two lighter nuclei, and fusion is the process where two light nuclei combine together releasing vast amounts of energy.
Fusion occur in sun process.

Answer 2

Fission is splitting of one larger nucleus into smaller nuclei and fusion is process in which two nuclei fuse to form heavy nucleus..... Fusion occurs on sun...