Around large oases are scattered throughout the Sahara Desert and support small villages and farming communities. A.
50
B.
200
C.
90
D.
2,000

Please select the best answer from the choices provided

A
B
C
D ?

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.