Tests of Big Bang: The CMB. The Big Bang theory predicts that the early universe was a very hot place and that as it expands, the gas within it cools. Thus the universe should be filled with radiation that is literally the remnant heat left over from the Big Bang, called the “cosmic microwave background", or CMB.
The density will become less, this is because thing with less density float to the top when things with more density float to the bottom. It also becomes colder.
What percentage of incoming students report not drinking at all in the past year? Approximately 38% of incoming college students reported not drinking at all in the past year.
