Question

does nuclear fission or nuclear fusion create more energy?
fission creates much more energy per kilogram of fuel.
they both create about the same amount per kilogram of fuel.
fusion creates much more energy per kilogram of fuel.

Explanation:

Nuclear fusion releases more energy per - kilogram of fuel compared to nuclear fission. Fusion combines light nuclei, and fission splits heavy nuclei. The mass - energy conversion in fusion is more efficient for the same amount of fuel.

Answer:

Fusion creates much more energy per kilogram of fuel.