What is the thickness of the disk of the Milky Way?
A) 100 light-years
B) 1,000 light-years
C) 10,000 light-years
D) 100,000 light-years
E) 1,000,000 light-years
Correct Answer:
Verified
Q15: What is a shock front?
A)a wave of
Q16: What do astronomers consider heavy elements?
A)elements that
Q17: What makes up the interstellar medium?
A)open clusters
B)O
Q18: Where are most heavy elements made?
A)in the
Q19: How does the interstellar medium obscure our
Q21: How do we know that halo stars
Q22: Which of the following statements about the
Q23: Where do most dust grains form?
A)in supernovae
B)in
Q24: What evidence supports the galactic fountain model?
A)We
Q25: Which of the following statements about halo
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