Name: _______________________________
Layers of the Atmosphere
Reference: Fahey, D. W. (2002). Twenty Questions and Answers About the Ozone Layer: Scientific Assessment of Ozone
Depletion. Last updated 2005. Retrieved from
http://ozone.unep.org/Assessment_Panels/SAP/Scientific_Assessment_2006/Twenty_Questions.pdf.
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Instructions: Use the terms below to label the layers of the atmosphere on the following page. Shade the layers according to
the amount of air in the layer (layer with the most air shaded darkest, layer with the least air shaded lightest).
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Stratosphere
Mesosphere
Ozone layer
Thermosphere
Troposphere
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Instructions: Answer the questions below using the Scientific Assessment of Ozone Depletion and your knowledge of the
atmosphere and ozone layer.
1)
a) Which layer of the atmosphere is the thickest?
b) Why might this be the case?
Describe the function and composition of ozone layer.
a) What caused depletion of the ozone layer?
b) How was this regulated?
Choose one of the questions in the Scientific Assessment of Ozone Depletion, read the answer, and then summarize the answer
in your own words. Please use a minimum of five and maximum of ten sentences.
2)
3)
4)
Layers of Earth’s Atmosphere
500 km
90 km
50 km
10 km
Earth