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15 Cards in this Set
- Front
- Back
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Precipitation
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any form of water that falls to Earth's surface from the clouds
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Air Mass
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a large body of air throughout which temperature and moisture content are similiar
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Front
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the bondry between air masses of different densities and usually different temperatures
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Cyclone
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an area in the atmosphere that has lower pressure than the surrounding areas and has winds that spiral toward the center
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Lightning
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an electric discharge that takes place between two oppositely charged surfaces,such as between a cloud and the ground, between two clouds or between two parts of the same cloud
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Thunder
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the sound caused by the rapid expansion of air along an electric strike
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Tornado
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a destructive, rotating column of air that has very high wind dpees and may be visible as a funnel shaped cloud
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Hurricane
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a large, rotating tropical weather system that has wind speeds of at least 120 km/hr; the most powerful storms on Earth
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Climate
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the average weather conditions in an area over a long period of time
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Latitude
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the distance north or south from the equator; expressed in degrees
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Elevation
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the height of an object above sea level
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Surface Currents
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horizontal movement of ocean water that is caused by wind and that occurs at or near the oceans surface
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Ice Age
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a long period of climatic cooling during which the continents are glaciated repeatdly
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Global Warming
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a gradual increase in average global temperature
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Greenhouse Effect
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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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