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Author Question: Weather charts and maps are still plotted and analyzed entirely by hand. Indicate whether the ... (Read 133 times)

penza

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Weather charts and maps are still plotted and analyzed entirely by hand.
  Indicate whether the statement is true or false

Question 2

Primary air pollutants ____, whereas secondary pollutants _____.
 A) enter the atmosphere directly; form by chemical actions involving other pollutants
  B) form through a series of chemical reactions; occur naturally
  C) occur naturally; are synthetic
  D) enter the atmosphere directly; enter the atmosphere through human intervention



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honnalora

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Answer to Question 1

False

Answer to Question 2

A




penza

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Reply 2 on: Jul 13, 2018
Great answer, keep it coming :)


nguyenhoanhat

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Reply 3 on: Yesterday
:D TYSM

 

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