About 25% of the mass in the universe is helium? Where did most of the helium come from?
A)It was produced in early,massive stars
B)It was present in the universe at the moment the expansion began
C)It was produced in supernovae
D)It was produced during the first few minutes of the expansion

Question

Quizplus · Accepted Answer

Most of the helium in the universe was produced during the Big Bang nucleosynthesis, which occurred within the first few minutes of the universe's existence. This process led to the formation of most of the helium and other light elements.

About 25% of the Mass in the Universe Is Helium