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5.02 Atmosphere Composition
Earth Science
5
Science
10th Grade
12/01/2014

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Term
convection currents
Definition
Heat is transferred by mass movement (by way of these currents) of heated particles into an area of cooler fluid
Term
temperature inversion
Definition
A condition in which a warm air mass is located above a cold air mass, causing the cold air mass to be trapped near the ground
Term
ozone
Definition
A three-atom form of oxygen that, in a layer in the stratosphere, screens out harmful ultraviolet rays from the sun
Term
ultraviolet radiation
Definition
Radiation having a wavelength shorter than wavelengths of visible light and longer than those of X rays; electromagnetic radiation with wavelengths between about 0.2 and 0.4 micrometers
Term
ionosphere
Definition
A region of the atmosphere with a high concentration of electrically charged atoms (ions) and free electrons
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