| A | B |
|---|
| blizzard | severe winter storm that lasts several hours and combines high winds with heavy snow |
| canyon | deep valleys with steep sides |
| contiguous | joined together inside a common boundary |
| cordillera | region of parallel mountain chains |
| divide | the high point in a landmass that determines the direction river flows |
| droughts | long period of time without rainfall |
| glaciers | giant sheets of ice |
| hurricane | wind system that forms over the ocean in tropical areas and brings violent storms with heavy rains |
| megalopolis | huge urban area made up of several large cities and nearby communities |
| navigable | referring to a body of water wide and deep enough for ships to use |
| prairie | rolling inland grassland region with fertile soil |
| tornado | severe windstorm that takes the form of a funnel-shaped cloud and often touches the ground |
