Which sentence about galaxies provides evidence of universe expansion that supports the Big Bang Theory?
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. Galaxies are moving away from each other. Galaxies are in constant motion. Galaxies are in constant motion. Galaxies are moving more slowly than they have in the past.
The sentence that provides evidence of universe expansion that supports the Big Bang Theory is: "Galaxies are moving away from each other."
The sentence "Galaxies are moving away from each other" provides evidence of universe expansion that supports the Big Bang Theory. This is known as Hubble's Law, named after astronomer Edwin Hubble. Hubble observed that galaxies appear to be moving away from each other, leading to the conclusion that the universe is expanding. This supports the Big Bang Theory, which suggests that the universe originated from a hot, dense state and has been expanding ever since. The fact that galaxies are moving away from each other suggests that they were once closer together, lending support to the idea of an expanding universe.
