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Stack #4548964
| Question | Answer |
|---|---|
| erosion | The process by which wind, water, ice, or gravity moves weathered particles of rock and soil. |
| sediment | small, solid pieces of material that come from rocks or remains of organisms, earth materials deposited by erosion. |
| deposition | Process in which sediment is laid down in new locations. |
| gravity | The attraction force between objects, the force that moves objects downhill. |
| mass movement | Any one of several processes by which gravity moves sediment downhill. |
| runoff | Water that flows over the ground surface rather than soaking into the ground. |
| rill | a tiny groove in soil made by flowing water. |
| gully | A large channel in soil that carries runoff after a rainstorm. |
| stream | A channel through which water is continually flowing downhill. |
| tributary | A stream or river that flows into a larger river. |
| flood plain | The flat, wide area of land a long a river. |
| meander | A looplike bend in the course of a river. |
| oxbow lake | A meander cut off from a river. |
| delta | A landform made of sediment that is deposited where a river flows into an ocean or a lake. |
| alluvial fan | A wide, sloping deposit of sediment formed where a stream leaves a mountain range. |
| groundwater | Water that fills cracks and spaces in underground soil and rock layers. |
| stalactite | An ice like structure that hangs from the ceiling of a cavern. |
| stalagmite | A columnlike form that grows upward that hangs from the ceiling of a cavern. |
| karst topography | A region in which a layer of limestone close to the surface creates deep valleys,caverns and sinkholes. |
| glacier | Any large mass of ice that moves slowly over the land. |
| continental glacier | A glacier that covers much of a continent or large island. |
| ice age | Time in Earth's history during which glacier covered large parts of Earth's surface. |
| valley glacier | A long narrow glacier that forms when snow and ice build up in a mountain valley. |
| plucking | The process by which a glacier picks up rocks as it flows over the land. |
| till | The sediments depositited directly by a glacier. |
| moraine | A ridge formed by till deposited at the edge of a glacier. |
| kettle | A small depression that forms when a when a chunk of ice is left in glacial till. |