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Author Question: Primary waves travel ____ as fast as secondary waves. A) half B) twice C) three times D) at ... (Read 70 times)

bclement10

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on: Aug 22, 2018
Primary waves travel ____ as fast as secondary waves.
 A) half
  B) twice
  C) three times
  D) at the same speed

Question 2

What prevents the subduction of terranes?
 A) The relative thin layer of crusts
  B) The low density
  C) The proximity from plate boundaries
  D) The compression of continental crusts


macmac

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Reply #1 on: Aug 22, 2018
Answer to Question 1

B

Answer to Question 2

B


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