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

Question

Quizplus · Accepted Answer

Helium is mostly formed during the Big Bang, with about 25% of the universe's matter being helium. However, some additional helium is created through stellar nucleosynthesis in the cores of stars, particularly during the later stages of a star's life or in supernova explosions.

Helium Originates from