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Author Question: The three sources that brought young Earth to its melting point were A) impact heating, ... (Read 8 times)

brutforce

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on: Jul 29, 2018
The three sources that brought young Earth to its melting point were
 
  A) impact heating, convection heating, radiometric heating.
  B) impact heating, gravitational contraction heating, radioactive decay heating.
  C) impact heating, convection heating, radioactive decay heating.
  D) collisional heating, contraction heating, radiometric heating.

Question 2

Based on its abundance in Earth's crust, most rocks contain a mineral composed of the elements oxygen and
 
  A) carbon.
  B) silicon.
  C) iron.
  D) sulfur.


cclemon1

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Reply #1 on: Jul 29, 2018
Answer to Question 1

Answer: B

Answer to Question 2

Answer: B


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