jojoswian293Lv1

27 Sep 2022

Question 5

Edwin Hubble found out that what appeared to be large clouds in space were not gas, but _____.

 

A largestars

B galaves

C comets

 

 

Question 6

When a light source moves away from us, the consequent stretching out of wavelengths is known as _____.

 

 

A Blueshift

B Redshift

C Spectrum effect

 

As the universe expands it is the ______ that is expanding.

 

 

A. space within atoms and molecules

B entire universe and everything in it

C. space between the galaxies