Which evidence supports the idea that Cosmic Microwave Background radiation is a remnant of the Big Bang?(2 points)

Question

Responses

Its mass is uniform.
Its mass is uniform.

Its mass fluctuates greatly.
Its mass fluctuates greatly.

Its temperature fluctuates greatly.
Its temperature fluctuates greatly.

Its temperature is uniform.

Answer 1

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

1. Its temperature is uniform. - The CMB radiation is remarkably homogeneous, with a uniform temperature of about 2.7 K across the universe, which suggests it originated from a hot, dense state.

2. Its mass is uniform. - While the mass of the CMB isn't typically discussed in terms of uniformity, the concept of a uniform presence throughout the universe can be inferred, as the CMB radiation fills all of space evenly.

Thus, the correct response indicating the CMB as a remnant of the Big Bang is: Its temperature is uniform.