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Author Question: The average length of a period during which a given magnetic field polarity exists is about A) ... (Read 47 times)

sarasara

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on: Jul 14, 2018
The average length of a period during which a given magnetic field polarity exists is about
 
  A) 10,000 years.
  B) 100,000 years.
  C) 500,000 years.
  D) 1,000,000 years.

Question 2

Which of the following soil horizon designations is i the correct sequence from the surface to the bedrock?
 
  A) O, E, C, B, A
  B) A, B, C, O, R
  C) S, O, I, L
  D) O, A, E, B, C


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Meganchabluk

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Reply #1 on: Jul 14, 2018
Answer to Question 1

C

Answer to Question 2

D


sarasara

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Reply 2 on: Jul 14, 2018
Great answer, keep it coming :)

okolip

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Reply 3 on: Yesterday
Wow, this really help

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