Jun 30th, 2015
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Alaska Pacific University
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• ATMOSPHERE: is the air that surrounds the Earth. • NITROGEN: a gas in the atmosphere • OXYGEN: a gas in the atmosphere • IONOSPHERE: the third layer of the atmosphere

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SCIENCELESSON 1: THE ATMOSPHERE AND WEATHERVOCABULARY:ATMOSPHERE: is the air that surrounds the Earth.NITROGEN: a gas in the atmosphereOXYGEN: a gas in the atmosphereIONOSPHERE: the third layer of the atmosphereSTRATOSPHERE: the second layer of the atmosphere. OZONE LAYER: contains a ga

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