1. What percentage of the Earth's land area is Tundra?
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2. What are the types of Tundra?
- Antarctic, Alpine and Arctic
- Glacial and Antarctic
- Arctic and Alpine
3. What quality does the Permafrost have?
4. How are deserts defined?
- Surface runnoff is high
- Potential evapotranspiration exceeds annual precipitation
- Annual precipitation exceeds potential evapotranspiration
- No infiltration
5. What are 'Xerocoles'
- Desert Soils