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Confidence votes 46. Answer: Tundra are deserts because the tundra supports only a small number of organisms, it has low precipitation (often only 10 to 12 cm [3-5 inches] per year). When you have very little precipitation and no wildlife it is considered a desert. Answer: <br /> Tundra are deserts because the tundra supports only a small number of organisms, it has low precipitation (often only 10 to 12 cm [3-5 inches] per year).
Tundra is a biome typified by permafrost, permanently frozen ground, that is found in polar regions and isolated patches at the tops of mountains. It is an environment that is harsh, yet surprisingly delicate and easily disturbed.