Fusion: a. requires high temperatures b. occurs in the sun and other stars c. creates less radioactive waste than fission d. all of the above

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Nuclear fusion D) all of the above

Explanation: -

Nuclear fusion occurs in the stars. It requires a very high temperature to occur.

Nuclear fusion creates far less radioactive waste than fission.

As such nuclear fusion is preferable to be used.

The high temperature of nuclear fusion can at present only be realized in the case of nuclear bomb.