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

Other questions on the subject: Biology

image
Biology, 21.06.2019 21:10, dae71
Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.
Answers: 3
image
Biology, 21.06.2019 22:00, lizzyhearts
What types of energy transfers and energy transportations are involved in the domino chain reaction?
Answers: 1
image
Biology, 22.06.2019 05:00, jona187
How will you manage your time to accomplish the necessary tasks both on the job and at home?
Answers: 1
image
Biology, 22.06.2019 05:50, nestergurl101
Each hereditary trait corresponds to
Answers: 1
Do you know the correct answer?
Help if good at earth science/ space pls!!

1.) Which proportion of the universe's galaxi...

Questions in other subjects:

Konu
Mathematics, 09.06.2021 14:00
Konu
Computers and Technology, 09.06.2021 14:00