How did permanent settlements impact the social structure of early civilizations

Permanent settlements led to population increases. As populations grew, societies became more complex, as well as some social institutions that are older than civilization, but that fully developed in early civilizations: division of labor, social hierarchy, and even slavery.

In other words, as early civilizations became more complex, the relative egalitarianism of nomadic and semi nomadic societes disappeared.

(b) britain had a much larger navy than the u.s.

(d) the u.s. had a small army compared to britain.