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24 Cards in this Set
- Front
- Back
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acid rain
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Rain containing nitric and sulfuric acids.
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agriculture
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The science and art of farming.
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aquaculture
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Farming of aquatic organisms.
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biodiversity
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Biological diversity; the sum total of the variety of organisms in the biosphere.
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biological magnification
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A trophic process in which retained substances become more concentrated with each link in the food chain.
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conservation
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Wise management of natural resources, including the preservation of habitats and wildlife.
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deforestation
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Destruction of forests.
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desertification
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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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ecosystem diversity
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Variety of habitats, living communitites, and ecological processes in the living world.
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endangered species
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A species that is in danger of extinction throughout all or a significant portion of its range.
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extinction
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Disappearance of a pspecies from all parts of its geographical range.
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genetic 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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green revolution
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Introduction of intensive farming practices that lead to a substantial increase in crop yields.
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habitat fragmentation
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Splitting of ecosystems into small fragments.
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invasive species
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Plants and animals that have migrated to places where they are not native.
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monoculture
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Cultivation of large land areas with a single plant variety.
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nonrenewable resource
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Resource that cannot be replenished by natural processes.
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pollutant
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Harmful material that can enter the biosphere through the land, air or water.
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renewable resource
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Resource that can regenerate quickly and that is replaceable.
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smog
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Gray-brown mixture of chemicals that occurs as a haze in the atmosphere.
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soil erosion
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Wearing away of surface soil by water and wind.
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species diversity
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Number of different species in the biosphere.
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subsistence hunting
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Hunting only to acquire basic necessities for survival.
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sustainable use
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Using natural resources at a rate that does not deplete them.
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