8 terms

Layers of the Atmosphere

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Troposphere
bottom layer of the atmosphere where temperature decreases as you move upward from the Earth's surface
Stratosphere
gases are more stable and form flat layers
Mesosphere
part of the earth's atmosphere in which temperature decreases with altitude
Thermosphere
the part of the earth's atmosphere that begins at about 50 miles above the earth's surface, extends to outer space, and is characterized by steadily increasing temperature with height
Exosphere
has the lowest density of gas molecules
Karman Line
represents the boundary between the Earth's atmosphere and outer space
Exobase
is the level in the atmosphere above which the mean free path of particles is longer than a scale height
Ozone Layer
a region of Earth's stratosphere that absorbs most of the Sun's ultraviolet (UV) radiation