Which sentence about galaxies provides evidence of universe expansion that supports the Big Bang Theory?(1 point)

Question

Responses

Galaxies are in constant motion.
Galaxies are in constant motion.

Galaxies are moving more slowly than they have in the past.
Galaxies are moving more slowly than they have in the past.

Galaxies are moving at different speeds and in different directions.
Galaxies are moving at different speeds and in different directions.

Galaxies are moving away from each other.

Answer 1

The sentence that provides evidence of universe expansion that supports the Big Bang Theory is:

Galaxies are moving away from each other.

This observation indicates that the universe is expanding, which is a key aspect of the Big Bang Theory.