| A | B |
|---|
| permafrost | permanently frozen soil |
| Rocky Mountains | young mountains that contain the Continental Divide |
| Berigia | land bridge over which nomads from Asia came to North America |
| Everglades | famous swamp in the southern part of Florida |
| Appalachian Highlands | Landform region in eastern part of North America |
| prevailing westerlies | winds that flow across the United States |
| St. Lawrence Seaway | connects the great lakes to the Atlantic Ocean |
| Piedmont | region of rockie soil at the foot of mountains |
| Great Plains | western-most region of North American plains |
| Mississippi River | Ohio and Missouri Rivers are tributaries |
