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Author Question: The most harmful radiations are those that A) kill living cells. B) damage living cells. C) ... (Read 143 times)

melina_rosy

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The most harmful radiations are those that
 
  A) kill living cells.
  B) damage living cells.
  C) don't encounter cells.

Question 2

Cosmic rays originate in the
 
  A) Earth's interior.
  B) Earth's upper atmosphere.
  C) Sun.
  D) cosmos.
  E) none of the above



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Sammyo

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Answer to Question 1

Answer: B

Answer to Question 2

Answer: D




melina_rosy

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Reply 2 on: Jul 29, 2018
Excellent


fatboyy09

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Reply 3 on: Yesterday
Wow, this really help

 

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