according to big bang theory, the Universe started out with a very hot beginning, and has been cooling and expanding ever since. Which two observations of cosmic microwave background radiation support big bang theory?

Question

A Cosnic microwave background radiation redshifted and increased in mass over time.

Cosmic microwave background radiation exists in all areas of the observable universe.

C Cosmic microwave background radiation contains all of the dark matter necessary to start the Big Bang

D. Cosmic microwave background radiation stones the same amount of energy the Big Bang likely released.

E. Cosmic microwave background radiation has a relatively consistent temperature throughout the observabile universe

Answer 1

The two observations of cosmic microwave background radiation that support the Big Bang theory are:

B. Cosmic microwave background radiation exists in all areas of the observable universe.
This observation supports the idea that the early universe was hot and dense, leading to the uniform distribution of this radiation across the cosmos.

E. Cosmic microwave background radiation has a relatively consistent temperature throughout the observable universe.
This consistency in temperature aligns with the predictions of the Big Bang theory that the universe cooled as it expanded, but should still retain a remnant temperature that is approximately uniform due to its early states.

Therefore, the correct answers are B and E.