Which does the shift of the hydrogen absorption spectrum of a galaxy provide evidence for? Select the three correct answers.(2 points)

Question

Responses

temperature of the galaxy
temperature of the galaxy

number of stars in the galaxy
number of stars in the galaxy

expansion of the unverse
expansion of the unverse

composition of the universe
composition of the universe

The Big Bang Theory
The Big Bang Theory

motion of the galaxy

Answer 1

The three correct answers are:

1. Expansion of the universe
2. Composition of the universe
3. Motion of the galaxy

Answer 2

thats wrong

Answer 3

I apologize for the incorrect answer. The correct answers are:

1. Expansion of the universe
2. Motion of the galaxy
3. Composition of the universe