Physical and cultural...............
The Rift Valley was formed by violent subterranean forces that tore apart the earth's crust.
The farmers in the area are mostly subsistence farmers, as the region is very hot, and arid,making agriculture unviable. as a result there is famine and drought in the area, as well as nutritional issues.
The climate of most islands is tropical or subtropical. It varies between humid and seasonally dry.
if a business is trying to sell a piece of land in that area, and wants it assessed