Chemistry, 09.06.2020 05:57 paradisetiyae6903

What causes the sun's core and the earth's core to have extremely high temperatures? Select one:
a. The sun undergoes fusion and the earth undergoes fission. b. Both have nuclear fusion occurring in their cores.
c. Both have nuclear fission occurring in their cores.
d. The sun undergoes fission and the earth undergoes fusion.

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What causes the sun's core and the earth's core to have extremely high temperatures? Select one: