Which statement is INCORRECT about Cosmic Microwave Background radiation?

Question

*
2 points
its temperature is uniform.
it consists of electromagnetic radiation that is a remnant of the Big Bang.
It appears uniformly across the universe.
it appeared only a few years ago

Answer 1

The statement "it appeared only a few years ago" is incorrect. The Cosmic Microwave Background radiation is believed to have originated around 13.8 billion years ago, shortly after the Big Bang.