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Author Question: The Earth's age is ________ billion years old. A) 0.046 B) 0.46 C) 4.6 D) 46 E) ... (Read 40 times)

Redwolflake15

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The Earth's age is ________ billion years old.
 
  A) 0.046
  B) 0.46
  C) 4.6
  D) 46
  E) 460

Question 2

The Age of Dinosaurs persisted for some ________ years.
 
  A) 160
  B) 160 thousand
  C) 160 million
  D) 1.60 billion
  E) 160 billion


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emily12345

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emily12345

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