Answer:
Deforestation
Step-by-step explanation:
Sub-Saharan Africa simply refers to the southern part of the African continent which covers many of the countries. It covers a large geographical area. The area faces a lot of environmental problems that mostly includes the pollution such as water, soil, air, mining activities also affects the area, deforestation, and climate change.
From the above give options, deforestation is the major environmental problem in the Sub-Saharan Africa.