Overfarming and overgrazing farmlands have been a major influence in which destructive process

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.

The jobs of an executive director include heading operations, managing the budget, and securing more a) funding b) frontline workers c) resources d) programs

Central american countries are important agricultural producers. each year, the united states imports about five billion dollars’ worth of a. bananas b. cacao c. mangoes d. coffee