| A | B |
|---|
| tundra | cold dry region covered with snow for more than half the year |
| prairie | region of flat or rolling land covered with grasses |
| tributary | a river or stream that flows into a larger river |
| glacier | huge slow moving mass of snow and ice |
| permafrost | permanently frozen layer of ground below the top layer of soil |
| Great Lakes | the world's largest group of freshwater lakes |
| fossil fuels | fuel formed over millions of years from animal and plant remains |
| agribusiness | a large company that runs huge farms |
| alluvial soil | fertile topsoil left by a river, especially after a flood |
| provinces | political divisions of land in Canada |
| hydroelectricity | electric power produced by moving water |
| Rocky Mountains | major mountain range in western North America |
