Hey guys! I need about 5 questions answered! I will give out the Brainliest Answer to the first person to answer these questions! Each question is 5 points! Total: 25 points.

1. How many stars are in a galaxy?
a. hundreds
b. thousands
c. millions
d. billions

2. Which galaxy does not have a distinctive shape?
a. an irregular galaxy
b. an elliptical galaxy
c. a barred-spiral galaxy
d. a clustered galaxy

3. How do galaxies exist in the universe?
a. They exist together with no empty space in between them.
b. They spin within a few miles of each other.
c. They form clusters that are light-years away from other clusters.
d. They are evenly distributed throughout the universe.

4. What is a light-year?
a. the distance light travels from the sun to the earth
b. the distance light travels in one orbit of the moon
c. the time it takes light to travel across the universe
d. the distance light travels in one earth year

5. How long does it take for light to reach Earth from a star 8 light-years away?
a. 8 Earth minutes
b. 16 Earth minutes
c. 8 Earth years
d. 16 Earth years

Please help! ( Science )