Biology
Biology, 20.04.2020 22:20, rorob

Help if good at earth science/ space pls!!

1.) Which proportion of the universe's galaxies can be seen from Earth?(1 point)

a, approximately 10 percent

b, nearly half

c, approximately 25 percent

d, far less than 1 percent

2.) The model of galaxy formation in which sections of gas clouds collapse into small pieces which repeatedly combine into larger pieces under the influence of gravity is called the model or the model?

3.) Why are most stars not destroyed in a galaxy collision?(1 point)

a) Galaxies are mostly empty space.

b) Galaxies don't have stars.

c) Galaxies move too slowly for that type of damage.

d) Gravity keeps them away from each other.

4.) The universe's galaxies have evolved since what point in time?(1 point)

a) 800 million years ago, when gas concentrations were optimal for galaxy formation

b) 13.8 billion years ago, right after the universe first formed

c) approximately 50 million years ago, after initial clumps of material were formed

d) 23.4 billion years ago, when the universe first formed

answer
Answers: 1

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