Astronomy: The Universe Unit Test

Question

9 of 159 of 15 Items
Question
How does weak background radiation coming from every direction in the sky support the Big Bang Theory?(1 point)
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 correct response is:

It provides evidence of universe expansion.

Weak background radiation, specifically the Cosmic Microwave Background (CMB) radiation, is considered strong evidence for the Big Bang Theory as it is thought to be the afterglow of the initial explosion that created the universe. This radiation is uniform and comes from all directions, supporting the idea that the universe has been expanding since its inception.