Highly diverse, often divided into North Africa (arid) and Sub-Saharan Africa. The Americas: Comprising North, Central, and South America.
If you can tell me (or if you are looking at physical vs. human factors), I can provide more specific details on its features and dynamics. Regions in Geography: Definition, Types, and Examples geographical region
Defined by a high level of uniformity in one or more measurable traits. Highly diverse, often divided into North Africa (arid)
It has specific features that set it apart from adjacent areas. geographical region