humans changing the environment to meet their needs - modification, farming - agriculture, a rule made by a governing authority - regulation, a man who herds and tends cattle - cowboy/vaquero, planting different crops on the same land - crop rotation, fencing made out of twisted metal with sharp points - barbed wire, amount of a specific good or service that is available to consumers - supply, a large, fenceless area of grazing land for animals - open range, the desire for a specific good or servie - demand, a single company that owns all or nearly all of the market for a specific good or service - monopoly, railroad - tracks made of steel rails along which passenger and supply trains run,

Frontier & Development

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تضمين

لوحة الصدارة

النمط البصري

الخيارات

تبديل القالب

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