Answers
The words that identify types of galaxies are;
Elliptical, irregular and spiral
Step-by-step explanation
The three main types of galaxies are Elliptical, Spiral and Irregular. The spiral galaxies are the most common type in the universe, with a good example being the Milky Way which is spiral. Spiral galaxies are described as huge rotating disks of stars and nebulae. Elliptical galaxies are egg-shaped commonly in galaxy clusters.