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unit 2 geography
| Term | Definition |
|---|---|
| rocky mountains | the major mountain range in western North America. |
| glacier | a huge, slow-moving mass of snow and ice. |
| great lakes | the worlds largest group of freshwater lakes. |
| tributary | a river or stream that flows into a large river. |
| tundra | a cold dry region covered with snow for more then half a year. |
| permafrost | a permanently frozen layer of ground below the top layer of soil. |
| prairie | a region of flat or rolling land covered with grasses. |
| province | a political division of land in Canada. |
| alluvial soil | fertile topsoil left by a river |
| agribusiness | a large company that runs huge farms |
| hydroelectricity | electric power produced by moving water |
| fossil fuel | a fuel formed over millions of years from animal and plant remains. |