| Term | Definition |
|---|
| agriculture | farming |
| monoculture | large fields are planted with a single variety year after year |
| green revolution | where modern africultural techniques were introduced, such as monoculture and the use of chemical fertilizers |
| renewable resources | can regenerate if they are alive or can be replenished by biochemical cycles if they are nonliving |
| nonrenewable resource | one that cannot be replenished by natural processes |
| sustainable developement | a way of using natural resources without depleting them and of providing for human needs without causing longterm environmental harm |
| soil erosion | the wearing away of surface soil by water and wind |
| desertification | a combination of faming, overgrazing, and drought has turned once productive areas into deserts |
| deforestation | loss of forests |
| aquaculture | the raising of aquatic animals for human consumption |
| smog | a mixture of chemicals that occurs as a gray-brown haze in the atmosphere |
| pollutant | a harmful material that can enter the biosphere through the land, air, or water |
| acid rain | the burning of fossil fuels release nitrogen and sulfur compounds into the atmosphere. these compounds combine with water vapor in the air and form drops of nitric and sulfuric acids |
| extinction | occurs when a species disappears from all or part of its range |
| endangered species | a species whose population size is declining in a way that places it in danger of extinction |
| habitat fragmentation | when development splits ecosystems into pieces |
| biological magnification | when DDT can become concentrated to levels ten times higher than levels found in the plants |
| invasive species | apparently harmless plants and animals that humans transport around the world either accidentally or intentionally |
| conservation | used to describe the wise management of natural resources, including the preservation or habitats and wildlife |
| ozone layer | the atmoshphere contains a relatively high concentration of ozone gas |
| global warming | the increase in the average temperature of the biosphere |
Combine with other sets
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