The Physical Environment
                                                       
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Looking Back: Atmospheric Composition

 
Assess your understanding of concepts related to this chapter section by answering the questions below before proceeding with this chapter. Click the question to reveal the correct answer.
Homosphere: Sphere that lies between the surface and heterosphere where gases are uniformly mixed. Heterosphere: Outermost "sphere" of the atmosphere where gases are distributed into distinct layers.
nitrogen, oxygen, argon

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For Citation: Ritter, Michael E. The Physical Environment: an Introduction to Physical Geography.
Date visited.  ../title_page.html

Michael Ritter (tpeauthor@mac.com)

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