| A | B |
|---|
| marine west coast climate | areas with mild, rainy winters, and cool summers |
| rain forests | dense forests in the tropics |
| Mediterranean climate | areas with mild, rainy winters, and hot dry summers |
| savannas | broad grasslands with few trees |
| humid continental climate | areas with long, cold, snowy winters, and short, very hot summers |
| humid subtropical climate | areas just outside the tropics that have the heaviest rainfall in summer |
| subarctic | climate region just below the Arctic Circle |
| elevation | height above sea level |
| permafrost | some climate regions have these frozen layers of soil that never thaw |
| steppes | partly dry grasslands that surround many deserts |
| tundra climate | harsh and dry, vast rolling plains without trees |
| timberline | elevation above which no trees can grow |
| Amazon River Basin | largest rain forest in the world |
| ice cap climate | coldest climate region; great sheets for ice in Antarctica and Greenland |
| desert climate | driest climate; less than ten inches of rain per year |
| tropical climates | warm climates found between 23 1/2 N and 23 1/2 S latitude |
| tropical savanna climate | tropical climate with grasslands and dry hot season along with a rainy season |
| taiga | vast evergreen forests found in the sub arctic |
