| A | B |
|---|
| contiguous | Units, such as states, that connect to or border each other |
| Continental Divide | The crest of the Rocky Mountains that divides North America’s rivers into those that flow eastward and those that flow westward |
| basins | Regions surrounded by mountains or other higher land |
| colonies | Territories controlled by people from a foreign land |
| plantations | Large farms that grow mainly one crop to sell |
| annexed | Formally adding a state or territory to a larger country |
| textiles | Cloth products |
| bilingual | Having the ability to speak two languages |
| second-growth forests | The trees that cover an area after the original forest has been cut |
| megalopolis | A giant urban area that includes a string of cities that have grown together |
| diversify | For farmers, producing a variety of crops instead of just one |
| Corn Belt | The area of the Midwestern United States from Ohio to Iowa where raising corn is a major economic activity |
| Dairy Belt | The area of the Midwestern United States north of the Corn Belt in which dairy farming is a major economic activity |
| Wheat Belt | The area of the U. S. Great Plains region in which wheat farming is a major economic activity |
| center-pivot irrigation | A method of irrigation that uses long sprinkler systems mounted on huge wheels that rotate slowly, irrigating the area within a circle |
| strip mining | A process of mining by stripping away soil and rock |
| trade deficit | Value of a country’s exports is lower than the value of its imports |
