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Earths Surface Ch 5
Vocabulary from Ch. 5: Erosion and Deposition
| Question | Answer |
|---|---|
| erosion | the process in which weathered particles are picked up and moved from one place to another |
| deposition | the part of the erosion process in which sediment is placed in a new location, or deposited. |
| mass wasting | the downhill movements of masses of rock and soil. |
| drainage basin | the area of land in which water drains into a stream system |
| divide | a ridge from which water drains to one side or the other |
| floodplain | an area of land on either side of a stream that is underwater when the stream floods. |
| alluvial fan | a fan-shaped deposit of sediment at the base of a mountain. |
| delta | an area of land formed by the buildup of sediment at the end, or mouth, or a river. |
| sinkhole | a basin that forms when the roof of a cave becomes so thin that it suddenly falls in. |
| longshore drift | the zigzag movement of sand along a beach. |
| longshore current | the movement of water along a shore as waves strike the shore at an angle. |
| sandbar | a ridge of sand built up by the action of waves and currents. |
| barrier island | a long, narrow island that develops parallel to a coast. |
| dune | a mound of sand built up by wind. |
| loess | deposits of fine wind-blown sediment |
| glacier | a large mass of ice that moves over land |
| till | the sediment left directly on the ground surface by a retreating glacier. |
| moraine | a deposit of till left behind by a retreating glacier |
| kettle lake | a bowl-shaped depression that was formed by a block of ice from a glacier and then became filled with water |