Question

which provides evidence of universe expansion that supports the big bang theory? select the three correct answers.
a. the temperature of the universe is decreasing
b. the temperature of cosmic microwave background radiation varies widely from one part of the universe to another
c. an enormous amount of weak cosmic background radiation h as been detected in the universe
d. the temperature of the universe is increasing
e. galaxies are moving away from each other
f. the universe is undergoing a cycle of contraction and expansion

Answers

GPT-4o mini
The three correct answers that provide evidence of universe expansion in support of the Big Bang theory are:

a. **the temperature of the universe is decreasing** - This observation is consistent with the predictions of the Big Bang theory, which suggests that the universe has been cooling since its inception.

c. **an enormous amount of weak cosmic background radiation has been detected in the universe** - The cosmic microwave background radiation (CMB) is a remnant of the early universe and is a key piece of evidence supporting the Big Bang theory.

e. **galaxies are moving away from each other** - This observation, known as the redshift of galaxies, indicates that the universe is expanding, which is a fundamental aspect of the Big Bang theory.

The other options do not align with the evidence supporting the Big Bang theory.