Author Question: Lithospheric plates move in response to A) convection in Earth's interior. B) upper mantle ... (Read 81 times)

frankwu

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Lithospheric plates move in response to
 
  A) convection in Earth's interior.
  B) upper mantle convection cells.
  C) gravity and heat flow in the mantle.
  D) convection cells generated by gravity and heat flow in the mantle.

Question 2

Convection in Earth's mantle is attributed to
 
  A) sinking cold oceanic crust.
  B) gravity and heat flow.
  C) conduction of heat from Earth's core.
  D) temperature differences between continental and oceanic crust.



blakeserpa

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Answer to Question 1

Answer: D

Answer to Question 2

Answer: B



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