The hydrogen in the universe was formed by
A)the energy of the Big Bang.
B)nuclear fusion reactions in stars.
C)radioactive decay of heavy elements.
D)none of the above.

Question

Quizplus · Accepted Answer

The energy released during the Big Bang created hydrogen and helium, the two most abundant elements in the universe. Other elements were formed by nuclear fusion reactions in stars, but the initial hydrogen was formed by the Big Bang.

The Hydrogen in the Universe Was Formed by