Term Definition
atmosphere is a thin layer of air that forms a protecting covering around the planet
troposphere lowest of the earths atmosphere layer
ionosphere a layer of electrically charged particles
ozone layer made of oxygen
ultraviolet radiation is one of many types of energy that comes to earth from the sun
chlorofluorocarbon chemical compounds used in some refrigerators,air conditioner and aerosal sprays and in the production of some foam packaging
stratosphere the layer of the earth's atmosphere above the troposphere
mesosphere the region of the earth's atmosphere above the stratosphere and below the thermosphere
thermosphere the region of the atmosphere above the mesosphere
exophere the outermost region of a planet's atmosphere.




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