Question

what physical feature is most likely highlighted on the map?
the portion of sub - saharan africa that used to be arable and is now desert.
the grassland that is home to many animals unique to africa.
the tectonic plate line where africa is slowly widening.
the fertile soils that are found in the congo rainforest.

Explanation:

The highlighted physical feature on the map is the tectonic plate line where Africa is slowly widening. This is because the Red Sea area (which is part of the map's highlighted region) is located along the East African Rift, a divergent tectonic plate boundary. At divergent boundaries, tectonic plates move apart, causing the landmass to widen over time.

Answer:

The tectonic plate line where Africa is slowly widening.