Which of the following give evidence for the big bang theory? check all that apply. a. the doppler effect b. galaxy shapes c. cosmic background radiation d. contracting of the universe e. heating of the universe

A and C. Just took the thing

a "theory" a suggestion that is not 100 % accurate, or a figure. some people say its a theory because they of all the passed theory's about one subject. it depends sometimes theory might be accurate and sometimes they are.

2%? i tried finding the exact sorry if it's not 100% correct ; -;