6. what is the difference between segmental system of government and hierarchal form of government? What about pyramidal systems?
I have no clear idea of what a segmental governmental system is, however, with the root word "segment" and the state of African government, I'd guess that it means that the governments throughout Africa are scattered throughout the continent and there is no fully established system as a whole. An Hierarchy government is an established, systematic government. Everything is organized into systems, ie. Democracy.
I have no idea what a Pyramidal System is, however I'd assume it's an organization of a certain system into a pyramid-form. This being a Final Fantasy forum, take Job Classes for instance on Final Fantasy Tactics.
I don't know how extremely accurate any of that information is. I pretty much guessed on the Segmental and Pyramidal topics, but I'm sure that's what Hierarchy is.