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Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Term
Definition
Air pressure    
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Atmosphere    
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Altitude    
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Troposphere    
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Stratosphere    
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Mesosphere    
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  The measure of the force with which air molecules push on a surface.  
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  A mixture of gases that surrounds a planet or moon.  
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  Distance from sea level.  
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  The lowest layer of the atmosphere, in which temperature decreases at a constant rate as altitude increases.  
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  The layer of the atmosphere that is above the troposphere and in which temperature increases as altitude increases.  
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  The layer of the atmosphere between the stratosphere and the thermosphere and in which temperature decreases and altitude increases.  
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Thermosphere   The uppermost layer of the atmosphere, in which temperature increases as altitude increases.  
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Ionosphere    
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Ozone layer   The ozone layer protects life on Earth by absorbing harmful ultraviolet radiation.  
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Greenhouse effect    
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Radiation   The transfer of energy as electromagnetic waves.  
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Conduction   The transfer of energy as heat though material.  
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Convection   The movement of matter due to differences in density; the transfer of energy due to the movement of matter.  
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Global warming    
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  An area charged by ions.Ions radiate energy as shimmering lights called auroras.  
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  The warming of the surface and lower atmosphere of earth that occurs when water vapor,carbon dioxide,and other gases absorb and reradiate thermal energy.  
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  A gradual increase in average global temperature.  
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