The Sahara has a number of distinct physical features, includi | Reader IAS : UPSC 2024 Daily Planner

The Sahara has a number of distinct physical features, including ergs, regs, hamadas, and oases. Among these features, which of the following makes up nearly 70 percent of the Sahara?
A. Erg
B. Reg
C. Hamada
D. Oases

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Ans. B
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