How does weak background radiation coming from every direction in the sky support the Big Bang Theory?(1 point)

Question

Responses

It provides evidence of universe expansion.
It provides evidence of universe expansion.

It provides evidence of the universe's increasing mass.
It provides evidence of the universe's increasing mass.

It provides evidence of universe contraction.
It provides evidence of universe contraction.

It provides evidence of the universe's decreasing mass.

Answer 1

The weak background radiation coming from every direction in the sky supports the Big Bang Theory because:

It provides evidence of universe expansion.

This radiation, known as the Cosmic Microwave Background (CMB), is considered a remnant of the hot, dense state of the early universe and serves as strong evidence that the universe has expanded and cooled since the Big Bang.