Awful harmful prank ideas?

Reasons for factor mobility of a combine harvester, cotton, an oil platforn and a woodland

According to this chart, which country is likely to have the most economic freedom with regards to entrepreneurship?

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.