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| Dumping new sand onto eroding beaches to restore them. |
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| A wall across a river that controls the flow of the river water. |
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| The deepening or widening of a river or harbor. |
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| Water flowing or collecting over land that is normally dry. |
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Definition
| Thin, narrow wall built from the shoreline into the ocean. |
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| A wall along a river channel or other body of water that serves to prevent flooding by keeping water behind it. |
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Definition
| An artificial lake, often formed when water collects behind a dam. |
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| A system of pipes or channels that carry away storm water. |
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Definition
| Planting crops in level sections called terraces. |
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Definition
| Constructive force in which sediments that have been moved from one place are dropped or released in another place. |
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| Destructive force in which pieces of rock are moved by water, wind, or moving ice. |
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Definition
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Definition
| Destructive force that breaks down rocks into smaller pieces. |
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Definition
| Map that shows the shape of surface features and their elevations above seal level. |
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Definition
| Violent shaking of Earth's crust as built-up energy is released. |
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Definition
| Crack in Earth's surface along which movement takes place. |
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