A star produce energy by

answer:

the answer is A

Explanation:

because atoms of hydrogen are ripped apart and fuse (join) to form helium. These reactions release vast amounts of energy, which makes the star shine.

answer:

Nuclear Fusion

Explanation:

nuclear fusion

Energy is produced in a star's center, or core, where pressures are enormous and temperatures reach 27 million°F (15 million°C). This causes nuclear fusion—atoms of hydrogen are ripped apart and fuse (join) to form helium. These reactions release vast amounts of energy, which makes the star shine.

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