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Author Question: In astronomical usage, all atoms heavier than helium are referred to as__________. A) metals B) ... (Read 19 times)

panfilo

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on: Jul 27, 2018
In astronomical usage, all atoms heavier than helium are referred to as__________.
 
  A) metals
  B) Population I atoms
  C) halos
  D) dark matter

Question 2

__________is a graph of orbital velocity versus radius in the disk of a galaxy.
 
  A) A rotation curve
  B) A normal distribution
  C) The H-R diagram
  D) The light curve


Cnarkel

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

A

Answer to Question 2

A


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panfilo

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Reply #2 on: Jul 27, 2018
Both answers were spot on, thank you once again


Cnarkel

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Reply #3 on: Jul 27, 2018
Great! Please up vote :D


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