Explanation
The correct answer is (a) Sahara Desert.
The Sahara Desert is the largest desert in the world. It is located in North Africa, covering an area of approximately 9.2 million square kilometers (3.6 million square miles). The Sahara stretches across several countries including Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan, and Tunisia.
The Sahara is known for its vast stretches of sand dunes, rocky plateaus, and arid landscapes. It is an extreme desert characterized by very low rainfall, high temperatures, and harsh conditions. Despite its arid nature, the Sahara is also home to various plant and animal species that have adapted to survive in this challenging environment.
Therefore, the correct answer is (a) Sahara Desert.
