John a college student is having trouble making a commitment to his girlfriend. he is in the stage

Choose any two countries in the world, and briefly discuss the evolution of the government of these countries.

When arriving at a navigation lock what is the order of priority

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.