Why do geographers concern themselves with regions?

Regions in geography are parts on Earth that share many characteristics in common and which are often separated from other regions by natural barriers.

Regions are comparatively homogenous in itself, which means that they have some types of vegetation and animal life which are expected to be found equally in all parts of the region. Because of this, regions make very useful areas of focus when trying to study the geography of the earth!

The  pan-african movement  was an "emotional, cultural, psychological and ideological  movement  that began among the  african  dispora in the western hemisphere, for a closer  purpose, so that  african  people could feel secure, attain political, economic as well as psychological power visa vis other races or world regions" .