Final answer:
The Sahara is the world's largest hot desert, covering an area of about 9.2 million square kilometers in northern Africa.
Step-by-step explanation:
The world's largest hot desert is the Sahara. It covers a vast area of about 9.2 million square kilometers, which is roughly the size of the United States. The Sahara is located in northern Africa and is known for its extreme temperatures and low rainfall.
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