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 expands.
The universe is cooling 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 expands.

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 shrinks

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 aligns with the predictions of the Big Bang Theory, which posits that as the universe continues to expand, it will cool over time. The cooling of the universe has been observed through the cosmic microwave background radiation, which is a remnant of the heat from the early universe. As the universe expands, the wavelengths of this radiation stretch, resulting in a decrease in temperature.