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Author Question: Rigel, a blue supergiant, is 17 times more massive than the Sun and, therefore, is likely ________ ... (Read 37 times)

dmcintosh

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Rigel, a blue supergiant, is 17 times more massive than the Sun and, therefore, is likely ________ in age.
 
  Fill in the blank(s) with correct word

Question 2

What elements do astronomers consider heavy elements?
 
  A) all elements besides hydrogen and helium
  B) elements that are heavier than iron
  C) elements that are heavier than uranium
  D) elements that are heavier than hydrogen
  E) elements that are heavier than carbon



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abctaiwan

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Answer to Question 1

younger

Answer to Question 2

A





 

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