What are the dimensions of the base of the pyramid? 8 ft by 6 ft
8 ft by 3 ft
6 ft by 3 ft
8 ft by 9 ft

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.