Question

question 24 of 25 > classify the galaxies as spiral or elliptical galaxies. spiral galaxies elliptical galaxies answer bank a red galaxy filled with old stars a galaxy that is actively forming new stars and has a blue color a galaxy with a disk about 1000 light - years thick a galaxy with no supply of gas or dust a galaxy that is rich in gas and dust

Explanation:

Spiral galaxies are rich in gas and dust, actively form new stars (blue - due to young, hot stars), and have a disk structure. Elliptical galaxies are filled with old stars (red - due to cooler, older stars), have little to no gas and dust supply.

Answer:

Spiral galaxies: a galaxy that is actively forming new stars and has a blue color, a galaxy with a disk about 1000 light - years thick, a galaxy that is rich in gas and dust
Elliptical galaxies: a red galaxy filled with old stars, a galaxy with no supply of gas or dust