The document outlines 6 key concepts about agriculture that will be studied: 1) Crop growth depends on climate. 2) There have been 3 agricultural revolutions involving farming, mechanization, and genetic engineering. 3) Von Thunen's Model shows how transportation costs affect crop selection. 4) There are 2 main farming types - subsistence and commercial. 5) Settlement patterns in the US were based on agriculture potential. 6) Modern agriculture is increasingly industrialized and specialized, replacing family farms.