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Author Question: Tiny solid or liquid particles of various compositions that are suspended in the atmosphere are ... (Read 155 times)

abarnes

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on: Jul 13, 2018
Tiny solid or liquid particles of various compositions that are suspended in the atmosphere are called ____.
 A) aerosols
  B) carcinogens
  C) greenhouse gases
  D) chlorofluorocarbons

Question 2

Which gas in the upper atmosphere shields Earth's surface from the sun's harmful ultraviolet rays?
 A) nitrogen
  B) methane
  C) ozone
  D) chlorofluorocarbons


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Li Jun

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

A

Answer to Question 2

C


abarnes

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Reply 2 on: Jul 13, 2018
Thanks for the timely response, appreciate it

diana chang

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Reply 3 on: Yesterday
Gracias!

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