Which of the following is an accurate description of cosmic microwave background (CMB) radiation? Select two answers> CMB increases across the universe. CMB is constantly generated by stars. CMB produces differing temperatures across the universe. CMB is remnant radiation from the Big Bang.
CMB produces differing temperatures across the universe.
CMB is remnant radiation from the Big Bang.
The accurate descriptions of cosmic microwave background (CMB) radiation are:
1. CMB produces differing temperatures across the universe.
2. CMB is remnant radiation from the Big Bang.
The two accurate descriptions of cosmic microwave background (CMB) radiation are:
1. CMB produces differing temperatures across the universe: The CMB is not uniform and exhibits small fluctuations or variations in temperature across the sky. These temperature differences provide valuable information about the distribution of matter and energy in the early universe.
2. CMB is remnant radiation from the Big Bang: The CMB is the leftover radiation from the early stages of the universe, specifically from about 380,000 years after the Big Bang. As the universe expanded and cooled down, the light that was originally in the form of high-energy photons transformed into lower-energy microwave photons, which now make up the CMB.