Which evidence supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang?(1 point)

Question

Responses

Its temperature fluctuates greatly.
Its temperature fluctuates greatly.

Its mass fluctuates greatly.
Its mass fluctuates greatly.

Its temperature is uniform.
Its temperature is uniform.

Its mass is uniform.

Answer 1

The evidence that supports the idea that Cosmic Microwave Background (CMB) radiation is a remnant of the Big Bang is: Its temperature is uniform.

The CMB has been measured to have a nearly uniform temperature across the sky, which is consistent with the predictions of the Big Bang theory and indicates that it is a remnant from the early hot and dense state of the universe. Additionally, slight fluctuations in temperature (not great fluctuations) are observed, which provide information about the early universe's density variations.