What is the percentage of desert in the world?

what is the percentage of land in the world?
what is the percentage of water in the world?
what is the percentage of buildings in the world?
what is the percentage of Mountains in the world?
what is the percentage of plateus in the world?

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Answers

2014-11-02T18:49:20+05:30
Listen pls ask questions one by one pls it easr
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