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15 Cards in this Set
- Front
- Back
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lock
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canals and gated passageways
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tributary
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a small river that flows into a larger river
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levee
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embankments to control the flooding and reduce the damage to homes and crops
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Continental Divide
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an imaginary line through the Rocky Mountains that separates rivers that flow west from rivers that flow east
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coastal plain
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a flat lowland next to a coast
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fall line
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an area where waterfalls flow from higher to lower ground
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cordillera
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a region of parallel mountain chains
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isolate
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to make separate from others
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timberline
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the elevation above which it is too cold for trees to grow
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ethanol
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a liquid fuel made from plants
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national park
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large areas of great natural beauty
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create
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to make
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chinook b
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a dry wind
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indigenous |
people who are believed to be the first people to settle an area |
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colonists |
people who are sent to live in a new place and claim land for their home country |
