None of them do.
nuclear fusion
Nuclear Fusion
Combining two atomic nuclei is called nuclear fusion.
Fusion is a nuclear reaction.
The idea of nuclear fusion occurring at room temperature is called cold fusion.
Nuclear fusion produces nuclear energy
That would be nuclear fusion, like what happens in stars, when two hydrogen nuclei combine to form a helium nucleus.
Nuclear fusion
Nuclear fusion doesn't produce energy.
nuclear fusion
nuclear fusion make more energy and they both make energy and have waste products