Which condition, in combination with drought,
has most directly forced the migration of people
out of the southern regions bordering the Sahara?
(1) urbanization (3) wildlife tourism
(2) coastal pollution (4) desertification
It was most likely the condition of "desertification" thatĀ forced the migration of peopleĀ out of the southern regions bordering the Sahara, but this is not fact.Ā