The resources that were traded on the Trans-Saharan trade were salt, slaves, and religion. The West African countries were trading their gold for salt. The slaves were sent North and served as slaves or slave concubines. Islam was spread through the use of the Trans-Saharan trade route.
The term "representative government" refers to a system in which larger groups are represented in government bodies by one person or a small group of people. The term is commonly used to describe a representative democracy or an indirect democracy.