BIOA02H3 Chapter 52: Chapter 52

• School: UTSC
• Department: Biological Sciences
• Course: BIOA02H3
• Professor: Kamini Persaud

Document Summary

Hemisphere: the air masses moving toward the equator from the north and south become the northeast and southeast trade winds. Air masses moving away from the equator become westerly winds: once air masses come in contact with a mountain, the air passes over the mountains cooling and creating clouds that release moisture as rain or snow. The tundra biome is found in the arctic and at high elevations. In the arctic tundra the vegetation is low growing perennial plants underlain by permafrost (soil whose water is permanently frozen). Even though there is little precipitation the arctic tundra is very wet because water can"t drain through the permafrost. The tropical alpine tundra is not underlain by permafrost therefore more vegetation: the boreal forest is found toward the equator from the arctic tundra and at lower elevations. Winters are long and very cold and dry, summers are short however warm.