Question

what dominates the northern third of the continent of africa?
grasslands
savanna
rain forest
desert

Explanation:

The Sahara Desert is located in the northern third of Africa. It is one of the largest deserts in the world. Grasslands are more common in other regions. Savanna has a mix of trees and grasses and is not dominant in the northern third. Rain - forest is mainly in central Africa (like the Congo Basin).

Answer:

desert