Author Question: The spiral arms are blue from the presence of Population ________ stars in them. Fill in the ... (Read 114 times)

student77

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The spiral arms are blue from the presence of Population ________ stars in them.
 
  Fill in the blank(s) with correct word

Question 2

Stable fusion reactions end when ________ builds in a high-mass star's core.
 
  Fill in the blank(s) with correct word



bigsis44

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Answer to Question 1

I

Answer to Question 2

iron



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