Question

Which of the following is an accurate description of cosmic microwave background (CMB) radiation? (1 point)
Responses

CMB increases across the universe.
CMB increases across the universe.

CMB is remnant radiation from the Big Bang.
CMB is remnant radiation from the Big Bang.

CMB produces differing temperatures across the universe.
CMB produces differing temperatures across the universe.

CMB is constantly generated by stars.

Answers

GPT-4o mini
The accurate description of cosmic microwave background (CMB) radiation is:

**CMB is remnant radiation from the Big Bang.**

The CMB is the afterglow of the Big Bang, filling the universe and providing evidence of its early hot and dense state.