| A | B |
|---|
| Tundra | Extremely cold, dry; permanently frozen subsoil |
| Tropical Rain Forest | The richest biome in the world in term of number of species |
| Desert | Less than 25 cm of rain fall in this biome a year |
| Savanna | Vegetation consists of mostly grasses with dense root systems that can withstand long periods of drought |
| Chaparral | Mild, rainy winters and long, hot, and dry summers |
| Taiga | Exists mostly in northern North America and northern Eurasia |
| Temperate Deciduous Forest | Trees with leaves that fall annually |
| Grassland | Rich agricultural lands; periodic droughts, hot-cold seasons, rolling flat terrain |
