If you haven’t already seen this Harvard University map of ethnicity in Africa, based on data from ... narrowly in times of economic hardship, physical insecurity, or political conflict.

Soil scientists are developing the first ever digital soil map of Africa, covering 42 countries ... ground will measure the soil's chemical and physical properties and its organic content.

Save guides, add subjects and pick up where you left off with your BBC account. Africa is the world’s second largest continent and contains over 50 countries. Africa is in the Northern and ...