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| 9405228960 | agriculture | growing plants and animals for economic gain | 0 | |
| 9405231841 | terrace farming | steps into the side of a hill | 1 | |
| 9405256660 | First AG revolution | 17th century dev. of seed agriculture | 2 | |
| 9405263674 | hunter-gatherers | early humans who hunted | 3 | |
| 9405273086 | vegetative planting | process of cutting off stems and regrowing plant | 4 | |
| 9405281849 | Second AG Revolution | shortly after enclosure movement new tech. crop rotation | 5 | |
| 9405287781 | 500 CE | roman empire falls and farming grows into a village system | 6 | |
| 9405291529 | village system | used during middle ages clustered to keep others out | 7 | |
| 9405296114 | 1500 | columbian exchange spreads plants and animals across the world | 8 | |
| 9405300156 | enclosure movement | 1700 "commons" become fenced off into individual farms | 9 | |
| 9405308837 | Third AG Rev. | 1960 globalization led to industrialized farming | 10 | |
| 9405328934 | agribusiness | companies control dec. and selling of food to consumers | 11 | |
| 9405335236 | dietary energy | amount of food consumed | 12 | |
| 9405337344 | calorie intake | 1800 calories a day | 13 | |
| 9405340059 | pastoralism | form of sub. farming | 14 | |
| 9405344289 | transhumance | movement of animals to cooler place in the summer | 15 | |
| 9405404350 | intensive | cultivate very small amount to eat | 16 | |
| 9405406544 | extensive | large amount to eat with machinery (still just for fam) | 17 | |
| 9405411295 | double cropping | 2 harvest in 1 year per field | 18 | |
| 9405415407 | intercropping | 2 or more crops in same field to add nitrogen to soil | 19 | |
| 9405420791 | crop rotation | crop is rotated in same field | 20 | |
| 9405429385 | chemical farming | fertilizers to enchance soil | 21 | |
| 9405432249 | truck farming | market gardening | 22 | |
| 9405437754 | milkshed | distance milk can be delivered | 23 | |
| 9405442471 | commercial ranching | raising animals on plot of land they graze | 24 |
