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Author Question: Which two factors are most important to the existence of plate tectonics on Earth? A) oxygen in ... (Read 39 times)

HCHenry

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on: Jul 27, 2018
Which two factors are most important to the existence of plate tectonics on Earth?
 
  A) oxygen in the atmosphere and mantle convection
  B) Earth's liquid outer core and solid inner core
  C) the existence of life and oxygen in the atmosphere
  D) mantle convection and a thin lithosphere

Question 2

According to the Solar Nebula theory, planets
 
  A) should be a common result of star formation.
  B) should be randomly oriented to their star's equator.
  C) will revolve opposite the star's rotation.
  D) should orbit perpendicular to their star's equator.
  E) should be extremely rare.


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mceravolo

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Reply #1 on: Jul 27, 2018
Answer to Question 1

D

Answer to Question 2

A


HCHenry

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Reply 2 on: Jul 27, 2018
Gracias!

Dinolord

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Reply 3 on: Yesterday
Excellent

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