Question

1 multiple choice 1 point which description of these galaxies is accurate? a image of a galaxy b image of a spiral galaxy c image of an irregular galaxy picture c is an irregular galaxy and contains the youngest stars. picture b is a spiral galaxy and contains the oldest stars. picture a is an elliptical galaxy and contains an even mix of young and old stars. picture a is an irregular galaxy and contains the youngest stars.

Explanation:

1. Recall galaxy types: Elliptical galaxies (like Picture A) are rounded, have older stars, and a mix? No, ellipticals have older stars mostly. Spiral (Picture B) has arms, young and old. Irregular (Picture C) has no shape, young stars.
2. Analyze options:

• Option 1: Picture C (irregular) has youngest stars. Correct, as irregular galaxies form stars actively, so young stars.
• Option 2: Spiral (B) has oldest stars? No, spiral has both, elliptical has oldest.
• Option 3: Elliptical (A) has even mix? No, elliptical has mostly old stars.
• Option 4: A is irregular? No, A is elliptical.

Answer:

Picture C is an irregular galaxy and contains the youngest stars.