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| Farming stategy in which large feilds are planted with a single corp,year after year. |
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| The devlopement of highly productive crops strains and the use of modern agriculutural techniques to increase yeillds of food crops. |
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| Resource that can regenerate quickly and that is replaceable |
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Definition
| resource that cannot be replenished by natural processes. |
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| resource that cannot be replenished by natural processes. |
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| using natural resources at a rate that does not deplete them. |
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Definition
| wearing away of surface soil by water and wind. |
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| mixture of chemicals that occurs as a gravy-brown haze in the atmosphere, |
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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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| the raising of aquatic organisms for human consumption. |
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| harmful materail that can enter the biosphere through the land,air,or water. |
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Definition
| rain containing nitric and sulfuric acids. |
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Definition
| rain containing nitric and sulfuric acids. |
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Definition
| biological diversity;the sum total of the varitey of organisms in the biosphere. |
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Definition
| variety of habitats,living communities,and ecological processes in the living world. |
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| number of different species in the biosphere. |
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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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Definition
| disapperance of a species from all parts of its geographical range. |
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| species whose population size is rapidly declining and will become extinct if the trend continues. |
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| splitting of ecosystems into small fragments. |
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| increasing concentration of a harmful substane in organisms at higher trophic levels in a food chain or food web. |
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| plants and animals that have migrated to places where they are not native. |
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| wise management of natural resources,including the preservation of habitats and wildlife. |
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Definition
| atmospheric layer in which ozone gas is relatively concentrated. |
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Definition
| increase in the average tempatures on earth. |
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Term
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Definition
| increase in the average tempatures on earth. |
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