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Author Question: The Appalachian Mountains were formed when ________ and ________ collided more than 250 million ... (Read 102 times)

09madisonrousseau09

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on: Jul 14, 2018
The Appalachian Mountains were formed when ________ and ________ collided more than 250 million years ago.
 
  A) North America; Africa
  B) Africa; Europe
  C) South America; Africa
  D) Australia; Asia

Question 2

A Richter magnitude 8 earthquake is ________ times greater than a Richter magnitude of 7.
 
  A) 100
  B) 50
  C) 10
  D) 5


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nital

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

Answer: A

Answer to Question 2

Answer: C


09madisonrousseau09

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Reply 2 on: Jul 14, 2018
Gracias!

juliaf

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Reply 3 on: Yesterday
Excellent

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