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Author Question: When did the ice-free corridor open in North America, allowing a path for human migration from Asia? ... (Read 42 times)

storky111

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on: Jul 15, 2018
When did the ice-free corridor open in North America, allowing a path for human migration from Asia?
 
  A) 12,500 years ago
  B) 9,000 years ago
  C) 100,000 years ago
  D) 7,500 years ago

Question 2

________ refers to the change in the angle Earth's axis makes with the plane of our planet's orbit.
 
  A) Subduction
  B) Eccentricity
  C) Obliquity
  D) Precession


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jlaineee

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Reply #1 on: Jul 15, 2018
Answer to Question 1

Answer: A

Answer to Question 2

Answer: C


storky111

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Reply 2 on: Jul 15, 2018
Wow, this really help

sailorcrescent

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Reply 3 on: Yesterday
Excellent

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