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Author Question: Which substance is the most abundant primary air pollutant in the United States? A) sulfur oxide ... (Read 69 times)

notis

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on: Jul 13, 2018
Which substance is the most abundant primary air pollutant in the United States?
 A) sulfur oxide
  B) any volatile organic compound
  C) nitrogen oxide
  D) carbon monoxide

Question 2

What pattern is most likely associated with clear skies and fair weather?
 A) high pressure regions
  B) low pressure regions
  C) a cold front
  D) a warm front


rekilledagain

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Reply #1 on: Jul 13, 2018
Answer to Question 1

D

Answer to Question 2

A


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