Question

Objects in the universe vary in their composition. Which of the following best describes the composition of a galaxy?

A. A solar system containing more than one star larger than our sun

B. A collection of asteroids, dust, and gases orbiting each other in space

C. An unidentified object in space that can be seen using a powerful telescope

D. A collection of billions of stars and their satellites held together by gravity

Answer 1

Its D

Step-by-step explanation:

D. A collection of billions of stars and their satellites held together by gravity... My mom teaches science.

Answer 2

d

Step-by-step explanation:

i looked it up