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Author Question: Approximately what percentage of the earth's crust is composed of oxygen? A) 5 B) 40 C) 50 ... (Read 75 times)

ghost!

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on: Aug 27, 2018
Approximately what percentage of the earth's crust is composed of oxygen?
 
  A)  5
  B)  40
  C)  50
  D)  75

Question 2

Which of the following metals does the United States import from other countries?
 
  A) indium
  B) lithium
  C) palladium
  D) All of the above are imported from other countries.


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elyse44

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

C

Answer to Question 2

D


ghost!

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Reply #2 on: Aug 27, 2018
Thanks


elyse44

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Reply #3 on: Aug 27, 2018
Welcome :)


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