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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.

How does the media influence our individual beliefs and our culture norms

What is the most likely result of specialization in producing products a and b? a) japan stops producing and using product b. b) the u. s. stops producing and using product a. c) the increased output means the u. s. and japan can trade excess units of products a and b. d) specialization means the u. s. will trade 800,000 units of product b for 60,000 units of product a.