Help ASAP! this is the last question.

Where were many of the arab trade routes established during the middle ages? a. by nile river delta b. near rivers and the coast c. along the persian gulf d. in the arabian desert

How did kenya gain its idpendence in 1963

Which statement is a good description of a model? a) models are a description of nature based only on one or two variables. b) models are testable ideas but they are not very to most people. c) models are a description of nature that predicts more accurately than real events. d) models are an approximiation of a real system that omits all but most essential variables in a system.