Multiple Choice
How does the diameter of the disk of Milky Way Galaxy compare to its thickness?
A) The diameter is about 100 times as great as the thickness.
B) The diameter and thickness are roughly equal.
C) The diameter is about 10 times as great as the thickness.
D) The diameter is about 100,000 times as great as the thickness.
Correct Answer:

Verified
Correct Answer:
Verified
Q9: Suppose you read somewhere that 10 percent
Q11: Which of the following observations confirms that
Q12: The most common form of gas in
Q13: Which star is older?<br>A) An A star
Q15: The galactic center lies in the direction
Q16: What do we mean by a protogalactic
Q17: What is an ionization nebula?<br>A) A region
Q19: Which of the following molecules is the
Q20: How do disk stars orbit the center
Q98: Which of the following statements is not