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Author Question: Hong Kong, a former ________ colony, was returned to China in ________. A) Portuguese; 1999 B) ... (Read 85 times)

cookcarl

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on: Jul 14, 2018
Hong Kong, a former ________ colony, was returned to China in ________.
 
  A) Portuguese; 1999
  B) American; 1913
  C) French; 1888
  D) British; 1997

Question 2

What is the long-term trend in mid-latitude ozone column depths? Can it be explained by the observed increase in stratospheric chlorine and bromine?
 
  What will be an ideal response?


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stallen

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

D

Answer to Question 2

In a shift from previously observed behavior, midlatitude ozone depletion seems to have slowed in recent years. This may well be because levels of stratospheric chlorine and bromine have already peaked and are beginning to decline.


cookcarl

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Reply #2 on: Jul 14, 2018
Thank you :)


stallen

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Reply #3 on: Jul 14, 2018
Happy to help you


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