Geological and Environmental Terms

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Composition

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The nature of something's ingredients or constituents; the way in which a whole or mixture is made up.

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Erosion

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The process by which natural forces move weathered rock and soil from one place to another.

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Glacier

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A slowly moving mass or river of ice formed by the accumulation and compaction of snow on mountains or near the poles.

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Gravity

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The force that attracts a body toward the center of the earth, or toward any other physical body having mass.

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Landform

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A natural feature of the earth's surface.

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Landslide

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The sliding down of a mass of earth or rock from a mountain or cliff.

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Reaction

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A response to a stimulus or situation.

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Sediment

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Matter that settles to the bottom of a liquid; dregs.

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Weathering

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The process of wearing or being worn by long exposure to the atmosphere.