Which is evidence that scientists use to support the big bang theory?

A.

The outer planets are mostly composed of hydrogen and helium.

B.

Most orbits have an elliptical shape.

C.

Most galaxies are moving away from each other.

D.

Earth is the only planet with permanent liquid water on its surface.

Question

Which is evidence that scientists use to support the big bang theory?
	
	
 
A.
	

The outer planets are mostly composed of hydrogen and helium.
	
 
B.
	

Most orbits have an elliptical shape.
	
 
C.
	

Most galaxies are moving away from each other.

	
 
D.
	

Earth is the only planet with permanent liquid water on its surface.

anonymous · Answer

Light from distance galaxies is red shifted. Based on the doppler effect, interpret what that means.

anonymous · Answer

The universe is gradually expanding, so the closes answer would be C. Your welcome (: