Which factor in the ohio valley caused british-american relations to deteriorate?

I’m annoyed but glad that my history teacher left and quit her job as a teacher to become a flight attendant

Prior to the presence of europeans on the continent, the slave trade in africa a) did not exist in any form. b) was limited to internal trade only. c) included the trans-saharan and indian ocean slave trade. d) was rarely needed due to the lack of an agricultural economy.

Who founded the social contract theory of the government