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Author Question: Ozone is a necessary, protective component of the ________, but is considered a pollutant in the ... (Read 55 times)

oliviahorn72

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Ozone is a necessary, protective component of the ________, but is considered a pollutant in the ________.
 
  A) troposphere, upper atmosphere
  B) troposphere, air
  C) photochemical smog, air we breathe
  D) upper atmosphere, troposphere
  E) air we breathe, upper atmosphere

Question 2

Which of the following is an appetite suppressant?
 
  A) insulin
  B) ghrelin
  C) peptide YY (PYY)
  D) leptin


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Ptupou85

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oliviahorn72

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Reply 2 on: Aug 27, 2018
:D TYSM


EAN94

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Reply 3 on: Yesterday
Excellent

 

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