Question

Which is an important river valley in the Sahel?

A. Tigris
B. Niger
C. Euphrates
D. Mediterranean​

Answer 1

B. Niger

Step-by-step explanation:

down here is the Sahel so its the Niger River.

hope i helped

Answer 2

Correct answer is B. Niger.

Step-by-step explanation:

First of all, Sahel is realm located in Africa and Niger is the only river mentioned here that flows through that continent.

On the other side, Tigris and Euphrates are two rivers were Mesopotamia was created (modern day Iraq).

Mediterranean is a sea, not a river valley.