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Author Question: Which of the following can't be associated with the spiral arms of a galaxy? a. dust and gas b. ... (Read 39 times)

casperchen82

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on: Jul 27, 2018
Which of the following can't be associated with the spiral arms of a galaxy?
 
  a. dust and gas
  b. metal-poor stars
  c. young, massive stars
  d. star formation

Question 2

The lower edge of the main-sequence band is known as ________ and represents the location in the H-R diagram at which stars begin their lives as main-sequence stars.
 
  a. the Coulomb barrier
  b. hydrostatic equilibrium
  c. the birth line
  d. the zero-age main sequence
  e. the evolutionary track


tanna.moeller

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Reply #1 on: Jul 27, 2018
Answer to Question 1

b

Answer to Question 2

d


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