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| 641122300 | Agriculture | science and practice of farming including cultivation of the soil and the rearing of livestock | |
| 641122301 | Aquaculture | production and harvesting of fish and shellfish in land-based ponds | |
| 641122302 | Boserup Thesis | the view that population growth independently forces a conversion from extensive and intensive subsistence agriculture | |
| 641122303 | Commercial Economy | a system of production of goods and services for exchange in competitive markets where price and availability are determined by supply and demand | |
| 641122304 | Economic Geography | the branch of systematic geography concerned with how people support themselves, with the spatial patterns of production, distribution, and consumption of goods and services, and with the areal variation of economic variation of economic activities over the surface of the earth | |
| 641122305 | Extensive Agriculture | A crop or livestock system in which land quality or extent is more important than capital or labor inputs in determining output | |
| 641122306 | Extractive Industry | primary activities involving the mining and quarrying of nonrenewable metallic and nonmetallic mineral resources | |
| 641122307 | Gathering Industry | primary activities involving the subsistence or commercial harvesting of renewable natural resources of land or water. Primitive gathering involves local collection of food and other materials of nature, both plant and animal; commercial gathering usually implies forestry and fishing industries | |
| 641122308 | Green Revolution | term used to describe the transformation of agriculture in many developing nations that led to significant increases in agricultural production between the 1940s and 1960s. | |
| 641122309 | Intensive Agriculture | any kind of agriculture activity that involves effective and efficient use of labor on small plots of land to maximize crop yield | |
| 641122310 | Market Economy | economic system in which decisions on production and consumption of goods and services are based on voluntary exchange in markets | |
| 641122311 | Maximum Sustainable Yield | the maximum rate at which a renewable resource can be exploited without impairing its ability to be renewed or replenished | |
| 645904789 | Natural Resource | physically occurring item that a population perceives to be necessary and useful to its maintenance and well-being | |
| 645904790 | Nomadic Herding | migratory but controlled movement of livestock solely dependent on natural forage | |
| 645904791 | Nonrenewable Resource | a resource that can only be replenished over millions of years | |
| 645904792 | Planned Economy | a system of production of goods and services, usually consumed or distributed by a governmental agency, in quantities, at prices, and in locations determined by governmental program | |
| 645904793 | Plantation | a large agricultural estate | |
| 645904794 | Primary Activities | Those parts of the economy involved in making natural resources available for use or further processing; included are mining, agriculture, forestry, fishing and hunting, and grazing. | |
| 645904795 | Quaternary Activities | Those parts of the economy concerned with research, with the gathering and dissemination of information, and with administration - including administration of the other economic activity levels; often considered only as a specialized subdivision of tertiary activities. | |
| 645904796 | Quinary Activities | a sometimes separately recognized subsection of tertiary activity management functions involving highest-level decision making in all types of large organizations; also most advanced form of the quaternary subsector | |
| 645904797 | Renewable Resource | a natural resource that it potentially inexhaustible either because it is constantly or periodically replenished as long as it use does not exceed its maximum sustainable yield | |
| 654341302 | Resource | a source of aid or support that may be drawn upon when needed | |
| 654341303 | Secondary Activities | Those parts of the economy involved in the processing of raw materials derived from primary activities and in altering or combining materials to produce commodities of enhanced utility and value; included are manufacturing, construction, and power generation | |
| 654341304 | Shifting Cultivation | crop production on tropical forest clearings kept in cultivation until their quickly declining fertility is lost. Cleared sites are then abandoned and new sites are prepared. | |
| 654341305 | Subsistence Economy | an economic system of relatively simple technology in which people produce most or all of the goods to satisfy their own and their family's needs; little or no exchange occurs outside or the immediate or extended family | |
| 654341306 | Technology | integrated system of knowledge, skills, tools, and methods developed within or used by a culture to successfully carry out purposeful and productive tasks | |
| 654341307 | Tertiary Activity | those parts of the economy that fulfill the exchange function, that provide market availability of commodities, and that bring together consumers and providers of services; includes wholesale and retail trade, associated transportational and governmental services, and personal and professional services of all kinds | |
| 654341308 | Tragedy of the Commons | the observation that in the absence of collective control over the use of a resource available to all, it is to the advantage of all users to maximize their separate shares even though their collective pressures may diminish total yield or destroy the resource altogether | |
| 654341309 | Truck Farming | The intensive production of fruits and vegetables for market rather than for processing or canning. | |
| 654341310 | Usable Reserves | mineral deposits that been identified and can be recovered at current prices and with current technology | |
| 654341311 | von Thünen model | model developed by von Thunen, German economist and landowner, to explain the forces that control the prices of agricultural commodities and how those variable prices affect patterns of agricultural land utilization |
