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Author Question: Astronomers before Shapely underestimated the size of the Milky Way galaxy because they lacked ... (Read 76 times)

sarasara

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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 2

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.



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Kimmy

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Answer to Question 1

False

Answer to Question 2

c




sarasara

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Reply 2 on: Jul 27, 2018
:D TYSM


at

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Reply 3 on: Yesterday
Gracias!

 

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