What is the biggest sand desert in the world?
Sahara is the largest desert in the world, encompassing almost all of northern Africa. Covering an area of about 3.3 million sq mi (8.6 million sq km), it is bounded by the Atlantic Ocean, the Atlas Mountains, the Mediterranean Sea, the Red Sea, and the Sahel region. It includes portions of several countries, including Morocco, Algeria, Tunisia, Libya, Egypt, Mauritania, Mali, Niger, Chad, and The Sudan.
