| A | B |
|---|
| subarctic climate | climate where taiga grow |
| groundwater | water below the earth's surface |
| evaporation | the sun's heat turns water into vapor |
| rain shadow | dry area on the side of mountains facing away from the wind |
| steppes | partly dry grasslands that surround many deserts |
| timberline | elevation above which no trees grow |
| plant life | vegetation |
| tundra climate | climate that is harsh, cold and dry |
| desert climate | climate with fewer than 10 inches of rainfall per year |
| humid subtropical climate | climate with hot, humid summers and short, mild winters |
| tropics | climate region at low latitudes near the Equator |
| salt water | the water in the earth's oceans |
| permafrost | layers of soil that remain frozen year-round |
| deserts | the earth's driest areas |
| freshwater | the water most important to humans |
| aquifers | underground rock layers that water flows through |
| typhoons | tropical storm systems in Asia |
| tundra | a vast rolling plain without trees |
| monsoons | seasonal winds that bring rain in South Asia |
| landforms | individual features of the land |
