Moving from coastal to interior regions of sub-Saharan Africa, we discover that the dominant physical-geographic feature is
A. many coastal inlets.
B. lush rainforest.
C. ascending plateaus.
D. mountainous terrain.
Ascending plateaus. (Reference: Penn Foster pg#75)
To answer this question, we need to understand the physical-geographic features of both coastal and interior regions of sub-Saharan Africa.
Coastal regions are areas that are located along the coastlines. These areas are influenced by the nearby ocean or sea. Common physical-geographic features of coastal regions include many coastal inlets, sandy beaches, and ocean currents.
On the other hand, interior regions refer to areas that are further away from the coast, in the interior of landmasses. These areas tend to have different physical-geographic characteristics.
One common physical-geographic feature of interior regions in sub-Saharan Africa is ascending plateaus. Plateaus are elevated flat or gently sloping areas of land. In the case of sub-Saharan Africa, these plateaus gradually ascend as you move from the coast towards the interior. This gradual increase in elevation creates an ascending plateau feature.
Lush rainforests are more commonly found in equatorial regions of sub-Saharan Africa, such as the Congo Basin, which extends across several countries in Central Africa. While there are rainforest regions in sub-Saharan Africa, they are not necessarily the dominant feature when moving from coastal to interior regions.
Mountainous terrain refers to areas characterized by significant landforms such as mountains, hills, and valleys. While there are mountain ranges in Africa, such as the Atlas Mountains in North Africa, they are not necessarily dominant features when moving from coastal to interior regions of sub-Saharan Africa.
Considering this information, the correct answer to the question is C. ascending plateaus.