8.The biggest desert in the world is
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Chihuahuan Desert
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Sahara Desert
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Mangolean Desert
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Thar Desert
B
Correct answer
Explanation
The Sahara Desert, covering approximately 9.2 million square kilometers across northern Africa, is the world's largest hot desert. It extends across 11 countries from the Atlantic Ocean to the Red Sea. While polar deserts like Antarctica are larger, the Sahara remains the biggest subtropical desert, known for its iconic sand dunes and extreme aridity.