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24 Cards in this Set
- Front
- Back
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What is a Volcano
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an opening in the earths surface out of which gasses as and lava may pour
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Rocky Mountains
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Newer, sharp peaks, taller
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Appalachian Mountains
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Older, rounded tops, much shorter
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What Territory did Lewis and Clark Explore
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The Louisiana Territory
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Who did most of the work on the first Transcontinental railroad
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Irish and Chineese People
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In the mountains what has improved communication
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Satlelites
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Why did boomtowns spring up
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The sprang up where they found gold
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Than happens in a Trade-off
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You give up something you want for something else that you want more
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What is the value of what a person gives up to get something else called
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opportunity cost
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Name the important industry of the Pacific Northwest
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The Lumber industry
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Name 3 elements that caused mountains to change over time
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rain, Ice Heat and blowing sand
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What happens to the temperature as you go up a mountain
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it gets cooler
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The Rocky Mountains were a huge obstacle to the east-wewst travel in the U.S. until what?
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The Transcontinental Railroad was built
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Where do Most people in the western Mountain regions live
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in the valleys between the mountains
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The climate in the Pacific Northwest is perfect for what?
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Growing trees/ the forest
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What is the oldest nationla park in this region
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Yellowstone National Park
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Name the major ways people can earn a living in the West
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Farming, Mining Lumber
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Lava
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Hot melted rock that comes out of a volcano
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slope
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the side of a mountain
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Continental Divide
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The imaginary line that runs north and south along the Highest points of the Rocky Mountains
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Timberline
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The line where it is too cold for trees to grow
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Barrier
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somthing that blocks the way, or makes it hard to move from one place to another
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Transcontinental Railroad
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A railroad built to link the east and west coast
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labor
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work
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