which best describes cosmic microwave background radiation?\no radiation thought to exist but not yet…
which best describes cosmic microwave background radiation?\no radiation thought to exist but not yet measured\no radiation predicted to exist in millions of years\no radiation that existed before the big bang\no leftover radiation from the big bang
Answer
Brief Explanations:
Cosmic microwave background radiation is the leftover heat radiation from the Big - Bang. It has been measured and exists now, not something to exist in millions of years or before the Big - Bang.
Answer:
leftover radiation from the big bang