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Author Question: Radon moves up through the soil and flows into the atmosphere at high and usually harmful rates. ... (Read 36 times)

Mimi

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on: Jul 21, 2018

Radon moves up through the soil and flows into the atmosphere at high and usually harmful rates.
 
 


 
  Indicate whether the statement is true or false.

Question 2

Chlorofluorocarbons (CFCs) are highly unstable.
 
 


 
  Indicate whether the statement is true or false.


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laurnthompson

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Reply #1 on: Jul 21, 2018
Answer to Question 1

F

Answer to Question 2

F


Mimi

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Reply 2 on: Jul 21, 2018
:D TYSM

helenmarkerine

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Reply 3 on: Yesterday
Gracias!

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