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AP Human Geography Ch.10
A grass yielding grain for food.
harvester that heads and threshes and cleans grain while moving across the field
The practice of rotating use of different fields from crop to crop each year, to avoid exhausting the soil.
dry seedlike fruit produced by the cereal grasses: e.g. wheat, barley, Indian corn
the cultivation of plants; The growing of fruits, vegetables, and flowers; cultivation of crops carried out with simple hand tools such as digging sticks or hoes