1. Temperature changes in polar deserts frequently cross the freezing point of water. 2. Northern portions of the region include polar desert , taiga and tundra biomes. 3. Polar deserts cover much of the ice-free areas of the Arctic and Antarctic.4. Severnaya Zemlya is a polar desert with sparse vegetation and permafrost at less than. 5. Most of the interior of Antarctica is polar desert , despite the thick ice cover. 6. Is it possible for a hypothetical planet to have polar deserts instead of ice caps? 7. Polar deserts on Earth cover nearly 5 million square kilometers and are mostly hard bedrock or gravel plains.8. Biomes include tropical rainforest, temperate broadleaf and mixed forest, temperate deciduous forest, taiga, tundra, hot desert, and polar desert . 9. Devon Island is a polar desert with a meteorite impact crater that has a geology very similar to Mars. 10. Imre Friedmann, director of the Polar Desert Research Center at Florida State University, said the study excludes the surrounding mountains.
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