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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.

Define homosphere and heterosphere.

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.

List the "permanent (constant)" gases.

nitrogen, oxygen, argon

Which greenhouse gas is more effective at heating the atmosphere, carbon dioxide or methane?

Methane

Which gas filters UV light in the stratosphere, carbon dioxide, ozone, or methane?

Ozone.

Soot increases or decreases reflectivity resulting in melting when deposited on snow?

Decreases

For Citation: Ritter, Michael E. The Physical Environment: an Introduction to Physical Geography.
Date visited. https://www.thephysicalenvironment.com/

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