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Author Question: Which gas in the upper atmosphere shields Earth's surface from the sun's harmful ultraviolet rays? ... (Read 423 times)

09madisonrousseau09

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on: Jul 13, 2018
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

Question 2

The forecasting technique that produces several versions of a forecast model, each beginning with slightly different weather information to reflect errors in the measurements, is called ____ forecasting.
 A) climatology
  B) probability
  C) persistence
  D) ensemble


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mrphibs

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

C

Answer to Question 2

D


09madisonrousseau09

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Reply #2 on: Jul 13, 2018
Thank you :)


mrphibs

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Reply #3 on: Jul 13, 2018
Happy to help you


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