North Africa
Northern part of Africa
north Africa
Libya is at the northern extreme (and middle North) of the continent of Africa. If you were in Libya, and pressed too hard to the North, you would fall into the Mediterranean Sea.
northern
As an editor of educational materials, I would write "North Africa"...or you could say "the northern part/section of Africa".
The Sahara is the desert of northern Africa.
Northern and North Eastern Africa
No, the Equator goes right through the northern part of Africa
Senegal is on Africa's north west coast.
The Nile is the longest river in North Africa.
The Sahara Desert covers most of Northern Africa.