1. Which is evidence of universe expansion that supports the Big Bang Theory?
A. The temperature of the universe has cooled and warmed repeatedly over time
B. The temperature of the universe is the same as it was at the time of the Big Bang
C. The temperature of the universe has cooled over time
D. The temperature of the universe has warmed over time
2. Which provided evidence of universe expansion that supports the Big Bang Theory? Select the three correct answers.
A. The temperature of the universe is increasing
B. The universe is undergoing a cycle of contraction and expansion
C. An enormous amount of weak cosmic background radiation has been detected in the universe
D. Galaxies are moving away from each other
E. The temperature of Cosmic Microwave Background radiation varies widely from one part of the universe to another
F. The temperature of the universe is decreasing
3. Which sentence about galaxies provide evidence of universe expansion that supports the Big Bang Theory?
A. Galaxies are moving away from each other
B. Galaxies are moving more slowly than they have in the past
C. Galaxies are moving at different speeds and in different directions
D. Galaxies are in constant motion
1 answer
C. An enormous amount of weak cosmic background radiation has been detected in the universe
D. Galaxies are moving away from each other