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Author Question: Once released into the atmosphere, chlorofluorocarbons remain about ____. a. 10-20 days b. ... (Read 153 times)

ARLKQ

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on: Jul 13, 2018
Once released into the atmosphere, chlorofluorocarbons remain about ____.
   a. 10-20 days
   b. 50-100 years
   c. 1-2 years
   d. 1-2 month
   e. 1000 years

Question 2

The so-called ozone hole is observed above the ____.
   a. continent of North America
   b. equator
   c. continent of Australia
   d. continent of Antarctica
   e. continent of Asia


jesse.fleming

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

ANSWER: b

Answer to Question 2

ANSWER: d


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