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Rachel Carson
2
acid rain
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apex consumer
2
arctic tundra
2
autotroph
2
biogeochemical cycle
2
biomagnification
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biomass
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biome
2
boreal forest
2
canopy
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chaparral
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chemoautotroph
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dead zone
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detrital food web
2
ecosystem
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equilibrium
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eutrophication
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fallout
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food chain
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food web
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grazing food web
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gross primary productivity
2
hydrosphere
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net primary productivity
non-renewable resource
2
permafrost
2
photoautotroph
primary consumer
2
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2
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