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  1. 1. The following are summaries of the most important concepts that we will study in this unit. Please create illustrations foreach.1. Much of the world’s crop products are based on the climate of the 2. Three agricultural revolutions changed history. The first saw a change regions where they are grown. from hunter-gathering to farming. The second increased productivity with mechanization and better transportation. The third involves genetic engineering, and increased use of fertilizers and antibiotics.3. Von Thunen’s Model focuses on transportation. The distance and the 4. There are two primary methods of farming in the world. Subsistence weight of crops as well as their distance to market affect which ones farming involves producing agricultural products for use by the farm are grown. family. Commercial farming involves the sale of agricultural products off the farm.5. Many of the settlement patterns in the United States have been 6. Modern agriculture is becoming more industrialized and specialized. based on the agricultural possibilities of the areas. The loss of the family farm is a direct result of the rise of feedlots and mega-farms used to produce enormous quantities of agricultural commodities. 165

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