The Big Bang predicts that after the universe was born it
A) consisted of an equal mixture of all the chemical elements
B) was completely empty
C) consisted of mostly hydrogen and helium
D) consisted of mostly carbon, hydrogen, oxygen and nitrogen

Question

Quizplus · Accepted Answer

The Big Bang theory predicts that the universe began as a hot, dense plasma composed mainly of hydrogen and helium. As the universe expanded and cooled, these elements were able to form atoms and eventually stars, which produced heavier elements through nuclear fusion. Therefore, the early universe consisted mostly of hydrogen and helium, with trace amounts of other elements.

The Big Bang Predicts That After the Universe Was Born