What factor below is the most important when trying to classify a galaxy as spiral or elliptical?
A)the amount of dust and gas in the galaxy
B)the galaxy's location
C)the number of satellite galaxies
D)the mass of the galaxy

Question

Quizplus · Accepted Answer

The amount of dust and gas in the galaxy plays a crucial role in determining its shape. Spiral galaxies have a significant amount of interstellar dust and gas that can be observed through their distinct spiral arms, while elliptical galaxies have less dust and gas and appear more smooth and featureless. Thus, the most important factor when classifying a galaxy as spiral or elliptical is the amount of dust and gas it contains.

What Factor Below Is the Most Important When Trying to Classify