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Author Question: The Moon lacks an atmosphere because its surface gravity is only ________ the Earth's. Fill in ... (Read 29 times)

nmorano1

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The Moon lacks an atmosphere because its surface gravity is only ________ the Earth's.
 
  Fill in the blank(s) with correct word

Question 2

The ________-year solar cycle is characterized by a variation in the number of sunspots through a reversal of the magnetic polarity of the Sun as a whole.
 
  A) 2 B) 10 C) 11 D) 22 E) 44



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stillxalice

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Answer to Question 1

one-sixth

Answer to Question 2

D





 

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