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Permafrost
Permafrost is the layer of permanently frozen ground that lies underneath the top soil of the tundra.
the tundra
permafrost
the answer is permafrost im only 9 and i know that du
Tundra is marked by a permanently frozen layer of soil called permafrost, which can be at considerable depth or just below the surface.
Permafrost
The tundra is the biome with the most permafrost.
permafrost!
permafrost
Tundra is a cold, treeless region with a short growing season and a layer of permafrost, or permanently frozen subsoil. Arctic tundra occurs in the Arctic region; alpine tundra is found in high mountains scattered all over the world. The temperatures are generally a little higher and the growing season longer in alpine than arctic tundra, and there are some different species of plants and animals. However, both types of tundra still have a layer of permafrost. See Tundra by Peter Moore (Chelsea House, 2006).
Tundra