Geography and Weather Terms

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Accumulation

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A buildup or gathering of something that occurs over time

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Atmosphere

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The layer of gases surrounding Earth held in by gravity

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Condensation

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The process by which water is changed from a gas (water vapor) to a liquid; a stage in the water cycle

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Evaporation

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The process by which water is changed from a liquid to gas (water vapor); a stage in the water cycle

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Freshwater

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Water found in rivers, lakes, glaciers, ice sheets, and underground that contains low concentrations of salt

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Ocean

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The entire body of saltwater that covers about 71% of Earth

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Precipitation

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A form of water (rain, snow, sleet, hail) that condenses in the atmosphere and falls to the Earth's surface

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Runoff

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The movement of water on a surface to areas of lower elevation

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Saltwater

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Water found in oceans (and few lakes) that contains 3–4% salt

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Water vapor

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The gas state of water