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15 Cards in this Set
- Front
- Back
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Weathering
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Is the process by which natural forces break down rocks.
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Mechanical Weathering
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The breaking up of rocks by physical forces.
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Exfoliation
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Is a process in which layers or sheets of rock gradually break off.
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Abrasion
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Is the process of wearing down by friction, the rubbing of one object or surface against the another.
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Chemical Weathering
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Is the breakdown of rocks by chemical reactions that change the rocks' makeup, or composition.
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Humus
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The decayed organic matter in soil.
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Soil Horizon
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A layer of soil with properties that differ from those of the layer above or below it.
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Soil Profile
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The soil horizons in a specific locations.
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Desertification
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The expansion of desert conditions in areas where natural plant cover has been destroyed.
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Erosion
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The process in which sediment is picked up and moved from one place to another.
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Deposition
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The process in which transported sediment is laid down.
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Mass Wasting
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The downhill movement of loose rock or soil.
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Drainage Basin
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An area of land in which water drains into a stream system. The borders of a drainage basin is called a divide.
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Alluvial Plain
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A fan-shaped deposit of sediment at the base of a slope, formed as water flows down the slope and spreads at the bottom.
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Delta
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An area of land at the end, or mouth, of a river that is formed by the build up of sediment.
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