The ratio of dark matter to ordinary matter in our galaxy is about
A) 1:1.
B) 2:1.
C) 6:1.
D) 25:1.
Correct Answer:
Verified
Q5: All spiral galaxies apparently
A) are rotating.
B) are
Q9: Compared with the Population I stars in
Q10: Dark matter
A) apparently occurs only in our
Q11: Interstellar space in our galaxy
A) is completely
Q12: Globular clusters of stars
A) are uniformly distributed
Q15: Magnetic fields in our galaxy trap
A) cosmic
Q16: Our galaxy is shaped roughly like a
A)
Q18: The stars in our galaxy
A) move entirely
Q19: Molecules in space can be identified from
Q20: The sun is
A) a Population I star.
B)
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