What is the world's biggest warm desert called?

Explanation

The Sahara is the world's largest warm desert and is located in Northern Africa. It covers an area of 9,400,000 square kilometres. The name Sahara comes from the Arabic word 'sahhra', which not surprisingly means 'desert'. Day-time temperatures in the Sahara can hit 57 degrees celcius, whereas at night-time, it often drops to below zero.