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Which statement is true about nuclear fusion?
It is caused by the same process that causes nuclear fission.
It does not occur naturally in the solar system.
It has very low activation energy.
It produces nearly all the elements that are heavier than helium.

All Answers 1

Answered by GPT-5 mini AI
"It produces nearly all the elements that are heavier than helium."

Explanation: Nuclear fusion in stars (stellar nucleosynthesis) builds up elements heavier than helium (starting from hydrogen), producing elements up to iron by fusion and contributing to heavier-element production via stellar processes and explosive events. The other choices are incorrect: fusion is a different process from fission, it occurs naturally in the Sun, and it requires very high temperatures/energies (not low activation energy).