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Author Question: The continental crust has an average age of ________ and a maximum age of ________. A) 1.2 ... (Read 20 times)

corkyiscool3328

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The continental crust has an average age of ________ and a maximum age of ________.
 
  A) 1.2 billion; 3.9 billion
  B) 1.6 billion; 4.0 billion
  C) 1.8 billion; 3.2 billion
  D) 2.2 billion; 4.4 billion

Question 2

Using Figure 9.9 in your textbook, choose the option that sequences the elements according to what scientists think are the least abundant elements in the mantle to the most abundant elements in the mantle.
 
  A) Pd, Au, Ge, Mn
  B) V, P, Mo, Ru
  C) Cr, Fe, Ag, Os
  D) As, Pt, W, Ga



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akemokai

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Answer to Question 1

Answer: D

Answer to Question 2

Answer: A




corkyiscool3328

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Reply 2 on: Jul 16, 2018
YES! Correct, THANKS for helping me on my review


Dinolord

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

 

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