How does nuclear fusion differ fundamentally from nuclear fission? a. nuclear fusion is a cold process. b. nuclear fusion splits atomic nuclei. c. nuclear fusion combines atomic nuclei. d. nuclear fusion doesn’t produce energy.

C. Nuclear fusion combines atomic nuclei.

Nuclear fission and nuclear fusion are nuclear reactions that produce energy in the form of heat. Fission is the process of the division of a heavy, unstable nuclei into two nuclei, and in fusion two  nuclei combines, result in release of energy.

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