Unit 5

Farming for consumption by the farming family and maybe a few neighbors.

In resource management, the known quantity of a resource that can be economically recovered.

Pesticide that breaks down relatively rapidly, usually in weeks or months, and have fewer long-term effects but because they must be applied more often their overall environmental impact is not always lower than that of persistent pesticides.

Total daily per capita use of fresh water for a country or the world.

The tendency of a shared, limited resource to become depleted if it is not regulated in some way.

A trait possessed by certain individuals that are exposed to a pesticide and survive.

A form of irrigation where the farmer digs trenches, or furrows, along the crop rows, and fills them with water.

The unintentional catch of nontarget species while fishing.

An agricultural method of planting crops with different spacing and rooting characteristics in alternating sets of rows to prevent soil erosion.

A pesticide that remains in the environment for years to decades.

A calcium carbonated sedimentary rock that has been ground up or crushed for easy application as fertilizer.

A form of irrigation where an entire field is flooded with water.

An area similar to a suburb, but unconnected to any central city or densely populated area.

The process by which water from precipitation percolates through the soil into groundwater.

A crop-planting strategy in which different types of crop species are planted from season to season or year to year on the same plot of land.

The average concentration of an element in Earth’s crust.

An agricultural technique in which trees and vegetables are intercropped.

An agricultural method in which land is cleared and farmed for only a few years until the soil is depleted of nutrients.

A pesticide that targets a narrow range of organisms.

Agriculture that applies the techniques of mechanization and standardization to the production of food.

A form of soil degradation that occurs when soil remains under water for prolonged periods.

A large indoor or outdoor structure designed for maximum occupancy of animals and maximum output of meat.

The removal of overlying vegetation and “strips” of soil and rock to expose underlying ore.

Mining techniques used when the desired resource is more than 100 m (328 feet) below the surface of Earth.