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Desert

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圖片參考：http://upload.wikimedia.org/wikipedia/en/thumb/4/43/Desert1.jpg/250px-Desert1.jpg


Erg Chebbi, Morocco


圖片參考：http://upload.wikimedia.org/wikipedia/commons/thumb/0/08/Judea_2_by_David_Shankbone.jpg/250px-Judea_2_by_David_Shankbone.jpg


Hills in the Judean desert.
A desert is a landscape form or region that receives very little precipitation. Deserts can be defined as areas that receive an average annual precipitation of less than 250 mm (10 in), or as areas in which more water is lost than falls as precipitation. In the Kppen climate classification system, deserts are classed as BWh (hot desert) or BWk (temperate desert).







Contents

1 Terminology
2 Geography
3 Etymology
4 Types of desert
5 Desert features

5.1 Flora and fauna
5.2 Water
6 Mineral resources
7 Human life in deserts
8 Examples of desert climate

8.1 Southern hemisphere
9 See also
10 References
11 External links