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Author Question: Why are earthquakes mainly found at the edges of plates? a) Earthquakes drive the plate motion ... (Read 75 times)

bio_gurl

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on: Aug 22, 2018
Why are earthquakes mainly found at the edges of plates?
 
  a) Earthquakes drive the plate motion
  b) That is where plates rub together
  c) Volcanic activity occurs at the plate edges
  d) Breakage and deformation of the lithosphere are focused at plate edges
  e) Convection causes mantle upwelling and downwelling
  at plate edges

Question 2

Alfred Wegener's theory of continental drift seems so reasonable today. Why was it rejected during the early 20th century?
 
  a) His jigsaw puzzle fit of the continental land mass showed large gaps and areas of overlap.
  b) He could not provide a driving mechanism for the continents that could plow through the ocean basins.
  c) His mountain formation concepts were not adequate.
  d) The best evidence would not be available until sea floor dating and magnetic reversal data came along decades after his death.
  e) All of the above


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harveenkau8139

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

D

Answer to Question 2

E


bio_gurl

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Reply 2 on: Aug 22, 2018
Gracias!

coreycathey

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Reply 3 on: Yesterday
Excellent

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