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Author Question: Since 1980, the concentration of the six EPA criteria air pollutants has increased significantly. ... (Read 65 times)

shenderson6

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on: Aug 27, 2018
Since 1980, the concentration of the six EPA criteria air pollutants has increased significantly.
 
  Indicate whether the statement is true or false

Question 2

It is cost effective to try to eliminate all air pollution.
 
  Indicate whether the statement is true or false


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jsm54321

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

FALSE

Answer to Question 2

FALSE


shenderson6

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Reply 2 on: Aug 27, 2018
Gracias!

frankwu0507

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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