How did european cities change in the renaissance?

What are the most populous and least areas of russia and why are some areas more heavily populated than others

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.

List two benefits of reforestation to the environment