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25 Cards in this Set
- Front
- Back
the practice of farming
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agriculture
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farming strategy in which large fields are planted with a single crop, year after year
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monoculture
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the development of highly productive crop strains and the use of modern agricultural techniques to increase yields of food crops
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green revolution
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resource that can regenerate quickly and that is replaceable
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renewable resource
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resource that cannot be replenished by natural processes
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nonrenewable resource
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using natural resources at a rate that does not deplete them
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sustainable development
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wearing away of surface soil by water and wind
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soil erosion
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in areas with dry climates, a process caused by a combination of poor farming practices, overgrazing, and drought that turns productive land into desert
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desertification
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destruction of forests
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deforestation
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the raising of aquatic organisms for human consumption
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aquaculture
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mixture of chemicals that occurs as a gray-brown haze in the atmosphere
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smog
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harmful material that can enter the biosphere through the land, air, or water
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pollutant
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rain containing nitric and sulfuric acids
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acid rain
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the sum total of the variety of organisms in the biosphere
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biodiversity
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variety of habitats, living communities, and ecological processes in the living world
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ecosystem diversity
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number of different species in the biosphere
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species diversity
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sum total of all the different forms of genetic information carried by all organisms living on Earth today
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genetic diversity
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disappearance of a species from all parts of its geographical range
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extinction
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species whose population size is rapidly declining and will become extinct if the trend continues
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endangered species
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splitting of ecosystems into small fragments
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habitat fragmentation
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increasing concentration of a harmful substance in organisms at higher trophic levels in a food chain or food web
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biological magnification
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plants and animals that have migrated to places where they are not native
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invasive species
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wise management of natural resources, including the preservation of habitats and wildlife
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conservation
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atmospheric layer in which ozone gas is relatively concentrated
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ozone layer
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increase in the average temperatures on Earth
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global warming
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