The southern border of the Sahara Desert is known as the "___."

Responses
A SahelSahel
B KalahariKalahari
C SavannahSavannah
D Oasis

A Sahel

The correct answer is A) Sahel.

To find the answer to this question, you can rely on your knowledge of geography or use an internet search engine.

The Sahara Desert is located in northern Africa and spans across multiple countries, including Algeria, Chad, Egypt, Libya, Mali, Mauritania, Morocco, Niger, Sudan, and Tunisia. The southern border of the Sahara Desert is a transition zone called the Sahel.

The Sahel is a semiarid region that lies between the southern edge of the Sahara Desert and the more fertile savannahs of central Africa. It stretches across several countries, including Senegal, Mauritania, Mali, Burkina Faso, Niger, Nigeria, Chad, Sudan, South Sudan, and Eritrea.

So, the correct answer is A) Sahel.

The southern border of the Sahara Desert is known as the "Sahel" (Option A).