Which of the following components of the Galaxy best outline the spiral arms of the Galaxy?
A) Young O and B stars,dust,and gas
B) Globular clusters
C) Predominantly solar-type stars
D) White dwarf stars

Question

Quizplus · Accepted Answer

Young O and B stars, dust, and gas outline the spiral arms of the Galaxy as they are found along the arms and their bright emission and absorption features allows for their detection even at great distances. Globular clusters, predominantly solar-type stars, and white dwarf stars are distributed throughout the Galaxy and do not specifically outline the spiral arms.

Which of the Following Components of the Galaxy Best Outline