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Author Question: On average, how fast do the plates move on the Earth? A) a few millimeters per century B) about 1 ... (Read 95 times)

abarnes

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On average, how fast do the plates move on the Earth?
 
  A) a few millimeters per century B) about 1 mile per hour
  C) a few centimeters per year D) a few kilometers per year

Question 2

Paradoxically, while the core of the red giant is contracting and heating up, its radiation pressure causes its photosphere to swell up and cool off.
 
  Indicate whether the statement is true or false



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firehawk60

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Answer to Question 1

C

Answer to Question 2

TRUE





 

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