The Sahel, or southern margin of the Sahara desert, is prone to what environmental hazard?

Answer: Is prone to desertification or drought.

Explanation: The Sahel region is located in Africa between the Sahara to the north and the Sudanian Savanna to the south.

The Sahel has a semi arid climate which is characterized by precipitation below potential evapotranspiration.

What this means is that the amount of water that would be evaporated and transpired by a specific crop or ecosystem is low. This region is prone to desertification or drought because of the low amount of water evaporated and transpirated in the region.