Question

which of the following components of the universe is best described as a system of stars, gases and dust held together by gravity? a galaxy a meteor a planet a nebula

Explanation:

A galaxy is a large system of stars, gas, and dust held together by gravity. A meteor is a small celestial body that enters Earth's atmosphere and burns up. A planet is a celestial body that orbits a star and has cleared its orbit. A nebula is a cloud of gas and dust in space.

Answer:

A. a galaxy