Which does the shift of the hydrogen absorption spectrum of a galaxy provide evidence for? Select the three correct answers.(2 points)
Responses
temperature of the galaxy
temperature of the galaxy
composition of the universe
composition of the universe
The Big Bang Theory
The Big Bang Theory
motion of the galaxy
motion of the galaxy
expansion of the unverse
expansion of the unverse
number of stars in the galaxy
1 answer
composition of the universe, motion of the galaxy, expansion of the universe