Among the evidence for the Big Bang origin of the universe is
A) the separation of the four basic forces
B) galaxies are all moving away from one another
C) a universal background radiation slightly above zero
D) the separation of the four basic forces AND a universal background radiation slightly above zero
E) galaxies are all moving away from one another AND a universal background radiation slightly above zero

Question

Quizplus · Accepted Answer

The fact that galaxies are all moving away from one another suggests that the universe is expanding, which is a key component of the Big Bang theory. Additionally, the presence of a universal background radiation slightly above zero is consistent with the idea that the early universe was extremely hot and dense, as predicted by the Big Bang theory. Both pieces of evidence provide strong support for the idea that the universe had a beginning with the Big Bang.

Among the Evidence for the Big Bang Origin of the Universe