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Author Question: How old is the Precambrian Crust? A) 0-500 million years B) 500 million-1 billion years C) ... (Read 94 times)

nenivikky

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on: Jul 16, 2018
How old is the Precambrian Crust?
 
  A) 0-500 million years
  B) 500 million-1 billion years
  C) 500 million-1.5 billion years
  D) 1 billion-4 billion years

Question 2

How did scientists calculate the rate of uplift of the Andes?
 
  A) using a fossil of coral from a high rock
  B) by radio-dating uplifted metamorphic rock
  C) by radio-dating uplifted sedimentary rock
  D) using tectonic data and knowledge of ice ages


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mmpiza

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Reply #1 on: Jul 16, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: B


nenivikky

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Reply 2 on: Jul 16, 2018
Excellent

smrtceo

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

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