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Home Q & A Board Science-Related Homework Help Physics Astronomy
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rolab97 rolab97
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6 years ago
The interstellar medium is made of ___  dust and ___  gas.
 
  a. 1, 99 b. 0, 100
  c. 100, 0 d. 5, 95

Question 2

Astronomers before Shapely underestimated the size of the Milky Way galaxy because they lacked telescopes.
 
  a. True
  b. False
  Indicate whether the statement is true or false

Question 3

You would use the 21-cm radio emission line to map out ____________.
 
  a. the interstellar medium b. molecular clouds
  c. atomic hydrogen clouds d. All of the other choices are correct.

Question 4

Population II stars contain more metals than Population I stars.
 
  a. True
  b. False
  Indicate whether the statement is true or false
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zika123zika123
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6 years ago
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rolab97 Author
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6 years ago
this is exactly what I needed
mkyoungs
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Yesterday
Thanks
julymontalvo
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2 hours ago
You make an excellent tutor!
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