The treeless plains of the Arctic Circle. For most of the year the temperature is than 0°C, and even during the short summer it never rises above 10°C. The soil is a thin coating over permafrost. Tundra vegetation includes lichens, mosses, and stunted shrubs. Similar regions on high mountains (but generally without permafrost) are called alpine tundra.
Related category GEOLOGY AND PLANETARY SCIENCE
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