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Author Question: As they move through space, the vibrating electrical and magnetic fields of a light wave must move ... (Read 90 times)

bobbysung

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on: Jul 27, 2018
As they move through space, the vibrating electrical and magnetic fields of a light wave must move perpendicular to each other.
 
  Indicate whether the statement is true or false

Question 2

Based on DNA studies, it seems that all life on Earth ________.
 
  A) arose from one of five distinct ancestors that lived about two billion years ago
  B) shares a common ancestor
  C) requires oxygen to survive
  D) belongs to one of just two kingdoms: plants and animals


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smrerig

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Reply #1 on: Jul 27, 2018
Answer to Question 1

TRUE

Answer to Question 2

B


bobbysung

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Reply 2 on: Jul 27, 2018
Gracias!

Laurenleakan

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Reply 3 on: Yesterday
Excellent

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