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1
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occurs when substances w/nitrogen and phosphorus flow into water ways and cause algae to grow
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2
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adding natural predators to a degraded ecosystem
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3
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materials found in the biosphere such as fuels, minerals, etc.
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4
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using organisms to detoxify polluted areas
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5
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variety of life in an area that is determined by the number of species
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6
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event in which a large % of species become extinct
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7
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species that are only found in that area
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8
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gradual process of becoming extinct
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12
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diff. environmental conditions that occur along the boundaries of an ecosystem
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18
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an entire species that is permanently wiped out from the biosphere
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19
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using resources at a rate in which they can be replaced
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