Evidence for the Big Bang includes the
A) observation that the universe is expanding.
B) independent evidence that microwave radiation is coming from all directions in space.
C) fact that the average temperature of the universe is 2.7 Kelvin.
D) abundance of light elements.
E) all of these are correct.

Question

Quizplus · Accepted Answer

All of these pieces of evidence support the Big Bang theory. The observation of the universe's expansion suggests that it all began from a single point in the past. The discovery of cosmic microwave background radiation coming from all directions provides evidence of a very hot, dense early universe. The average temperature of the universe today is consistent with what we would expect from the Big Bang. Additionally, the abundance of light elements (like hydrogen and helium) seen in the universe can also be explained by the conditions present in the early moments of the Big Bang.

Evidence for the Big Bang Includes the