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Which mechanism causes helium production during stellar nucleosynthesis?

A)Nuclear fusion converting hydrogen isotopes
B)Alpha decay of unstable heavy elements
C)Beta decay increasing neutron count
D)Fission of heavier elements releasing energy

💡 Explanation

Nuclear fusion in stars converts hydrogen isotopes into helium, thus releasing large amounts of energy via the strong nuclear force. Therefore, fusion of hydrogen creates helium, rather than radioactive decay doing so which involves alpha/beta emission.

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