Question

Most of the mass of the Milky Way exists in the form of A. dust. B. stars. C. dark matter. D. gas.

Answer 1

C. Dark Matter

Step-by-step explanation:

Dark matter is estimated to make up 90 percent of the mass of the galaxy.

The dark matter (as astronomers have come to call the invisible material) extends to a distance of at least 200,000 light-years from the center of the Galaxy.