| A | B |
|---|
| plains | large, flat areas with fertile soil |
| mountains | There are four kinds. |
| plateau | Flat, raised areas of land; edges rise steeply |
| coastal plains | Called lowlands; stretch along the coast. |
| volcanic mountains | layers of molten material forming a cone shape. |
| interior plains | located in central part of the continent |
| upwarped mountains | forces inside Earth push the crust up. |
| Fault-block mountains | hugh tilted blocks of rock |
| Folded mountains | Rock layers are squeezed forming rock layers to fold like a rock. |
| Landforms | U.S. has three types |
