1. nitrogen a geochemical cycle that cycles material by mantle convection, subduction, and seafloor spreading 2. phosphorus a biogeochemical cycle that cycles material by photosynthesis, respiration, and the food chain 3. tectonic a biogeochemical cycle that cycles material by weathering, erosion, tectonic activity, and the food chain 4. carbon a biogeochemical cycle that cycles material by fixation, assimilation, ammonification, nitrification, denitrification, and the food chain 5. hydrologic a biogeochemical cycle that cycles material by evaporation, condensation, precipitation, and transpiration 6. rock a geochemical cycle that cycles material by weathering, erosion, deposition, cementation, and metamorphism Question #13MultipleChoice Score: This sphere is the layer of Earth that contains a mixture of gases. hydrosphereatmospherelithospherebiosphere Question #14TextMultipleChoice Score: Water pollution can clog the gills of fish, choking them. In this example, the asthenospherebiospherelithospherehydrosphere is dependent on the asthenospherehydrosphereatmospherelithosphere. Question #15MultipleChoice Score: Bacteria from the soil absorb nitrogen from the air and convert it into ammonium. This is an example of _____. the hydrologic cyclenitrogen fixationassimilationcarbon cycle

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and transpiration 6. rock a geochemical cycle that cycles material by weathering, erosion, deposition, cementation, and metamorphism Question #13MultipleChoice Score: This sphere is the layer of Earth that contains a mixture of gases. hydrosphereatmospherelithospherebiosphere Question #14TextMultipleChoice Score: Water pollution can clog the gills of fish, choking them. In this example, the asthenospherebiospherelithospherehydrosphere is dependent on the asthenospherehydrosphereatmospherelithosphere. Question #15MultipleChoice Score: Bacteria from the soil absorb nitrogen from the air and convert it into ammonium. This is an example of _____. the hydrologic cyclenitrogen fixationassimilationcarbon cycle

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Asked 10/2/2012 9:51:16 AM

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1. nitrogen a geochemical cycle that cycles material by mantle convection, subduction, and seafloor spreading  2. phosphorus a biogeochemical cycle that cycles material by photosynthesis, respiration, and the food chain  3. tectonic a biogeochemical cycle that cycles material by weathering, erosion, tectonic activity, and the food chain  4. carbon a biogeochemical cycle that cycles material by fixation, assimilation, ammonification, nitrification, denitrification, and the food chain  5. hydrologic a biogeochemical cycle that cycles material by evaporation, condensation, precipitation, and transpiration  6. rock a geochemical cycle that cycles material by weathering, erosion, deposition, cementation, and metamorphism  Question #13MultipleChoice Score:  This sphere is the layer of Earth that contains a mixture of gases. hydrosphereatmospherelithospherebiosphere Question #14TextMultipleChoice Score:  Water pollution can clog the gills of fish, choking them. In this example, the asthenospherebiospherelithospherehydrosphere is dependent on the asthenospherehydrosphereatmospherelithosphere. Question #15MultipleChoice Score:  Bacteria from the soil absorb nitrogen from the air and convert it into ammonium. This is an example of _____. the hydrologic cyclenitrogen fixationassimilationcarbon cycle

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