Interstellar space in our galaxy
A) is completely empty.
B) is completely empty except for clouds of gas and dust.
C) contains about 1 atom or molecule per cm3.
D) contains about 1 atom or molecule per cm3between denser clouds of gas and dust.
Correct Answer:
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Q6: Emissions of various kinds from near the
Q7: Compared with the Population I stars in
Q8: The ratio of dark matter to ordinary
Q9: The number of galaxies in the universe
Q10: Dark matter
A) apparently occurs only in our
Q12: Globular clusters of stars
A) are uniformly distributed
Q13: The Milky Way is a
A) globular duster.
B)
Q14: Galaxies
A) have a variety of shapes.
B) are
Q15: Magnetic fields in our galaxy trap
A) cosmic
Q16: Our galaxy is shaped roughly like a
A)
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