Helium originates from ...
Answer
A) stellar nucleosynthesis only.
B) the Big Bang only.
C) stellar nucleosynthesis with a small contribution from the Big Bang.
D) the Big Bang with a small contribution from stellar nucleosynthesis.
E) radioactive decay of heavier elements only.
B) the Big Bang only.
C) stellar nucleosynthesis with a small contribution from the Big Bang.
D) the Big Bang with a small contribution from stellar nucleosynthesis.E) radioactive decay of heavier elements only.
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