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Author Question: Outside of the crust, the layer that scientists know the most about is the mantle. Other than via ... (Read 18 times)

rayancarla1

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on: Jul 16, 2018
Outside of the crust, the layer that scientists know the most about is the mantle. Other than via seismic waves, how else do geologists obtain information about the composition of the mantle?
 
  A) Drill cores
  B) Volcanoes
  C) Sonar
  D) Seismic waves

Question 2

What physical property of continents makes them difficult to subduct?
 
  A) Age
  B) Temperature
  C) Low density
  D) Thickness


nanny

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: C


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