Growth of industry has led to
a. growth of cities
c. slums
b. overcrowding
d. all of the above

Popular culture mainly encompasses the realm of

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.

When individuals with a stake in an issue affecting them begin to propose and develop solutions to a problem, they engage in