How does the change in the temperature of the universe provide evidence for universe expansion that supports the Big Bang Theory?(2 points)

Question

Responses

The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe shrinks.
The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe shrinks.

The universe is warming which, according to the Big Bang Theory, is expected to happen as the universe expands.
The universe is warming which, according to the Big Bang Theory, is expected to happen as the universe expands.

The universe is warming which, according to the Big Bang Theory, is expected to happen as the universe shrinks
The universe is warming which, according to the Big Bang Theory, is expected to happen as the universe shrinks

The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe expands.

Answer 1

The correct response is:

The universe is cooling which, according to the Big Bang Theory, is expected to happen as the universe expands.

This cooling is a result of the expansion of the universe, which has been observed and supports the Big Bang Theory. As the universe expands, the energy density decreases, leading to a lower temperature over time.