In Africa, a number of specialized occupations developed ,highly skilled metal smiths developed more effcient tool that increase agricultral produtivity. they also produce improved weapons ,which became important in the expansion of kingdoms.
The correct answer is atomic bombs.
Your answer should be French settlers.
A hogan is more of a permanent home, it takes a lot more time and materials to build. The Navajo are people that had kept sheep and goat, they mostly lived at between 5000 and 8000 feet in elevation. Some apache did make make hogans but they also used tipis. Apaches live a more mobile life style so other types of houses were more useful.
