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Author Question: Sine 1990, the most dramatic reduction in US aggregate pollution levels is for A) ozone. B) ... (Read 19 times)

luvbio

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on: Jul 14, 2018
Sine 1990, the most dramatic reduction in US aggregate pollution levels is for
 
  A) ozone.
  B) PM10.
  C) ozone and PM10.
  D) CO and SO2.

Question 2

The concentration of air pollution is ________ wind speed.
 
  A) proportional to
  B) inversely proportional to
  C) unaffected by
  D) always half of the


k.lashomb

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Reply #1 on: Jul 14, 2018
Answer to Question 1

Answer: D

Answer to Question 2

Answer: B


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