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11 Cards in this Set
- Front
- Back
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Locks |
Build canals or passageways |
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Tributaries |
Missouri and Ohio rivers |
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Levees |
Embankments to control the flooding |
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Continental divide |
High ridge of the Rocky Mountains |
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Coastal plain |
Flat low -lying area |
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Fall Line |
Boundary |
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Cordilla |
Region of parallel mountain chains |
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Timberline |
Too cold for the trees to grow |
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Ethanol |
A liquid fuel made from plants |
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National Parks |
Large areas of great natural beauty |
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Chinook |
A dry winter wind |
