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| 15114282881 | carbon in abiotic environment | -atmosphere -dissolved in water -calcium carbonate in rocks -deposits of coal, petroleum, and natural gas from fossilized organisms -dead organic matter (humus) | 0 | |
| 15114349988 | carbon cycle major reservoirs/sinks | -rocks/sediment (includes fossil fuels) -ocean -biosphere (plants, animals, soil) -atmosphere | 1 | |
| 15114371289 | carbon enters biotic world thorugh | photosynthesis and chemosynthesis (archaebacteria) | 2 | |
| 15114386082 | carbon returns to atmosphere by | -cellular respiration -burning -decay and decomposition | 3 | |
| 15114403835 | largest carbon sink | ocean | 4 | |
| 15114414033 | nitrogen fixation | organisms convert nitrogen gas to ammonia | 5 | |
| 15114417515 | nitrification | conversion of ammonia into nitrite and then intro nitrate | 6 | |
| 15114423191 | N assimilation | -producers take up either ammonium or nitrate -consumers assimilate by eating producers | 7 | |
| 15114438197 | ammonification | decomposers break down organic nitrogen into inorganic ammonia | 8 | |
| 15114452956 | dentrification | denitrifying bacteria convert nitrate into nitrogen gas | 9 | |
| 15114467181 | largest nitrogen sink | atmosphere | 10 | |
| 15114474735 | human impact of nitrogen cycle | -nitrogen in limited in most terrestrial ecosystems -leaching is when dissolved molecules are transported through soil via groundwater -increase in fertilizer | 11 | |
| 15114497715 | Nodules containing nitrogen-fixing bacteria would be expected to occur on the roots of | legumes | 12 | |
| 15114588748 | phosphorus cycle | -water precipitates out of oceans as sediments -over time, sediment becomes mountain -mountains are weathered by rain, etc. -weathering brings phosphorus to terrestrial and aquatic environments -held tightly by soils so it is not easily leached by soil | 13 | |
| 15114613554 | P assimilation | producers on lands and in water take up inorganix phosphate | 14 | |
| 15114623947 | there is no phosphorus in the... | atmosphere | 15 | |
| 15114632411 | P human impacts | -phosphorus mining -agal bloom -dead zone -household detergents | 16 | |
| 15114654555 | important storages of phosphorus | soil and oceans | 17 | |
| 15114686336 | largest phosphorus reservior | rocks | 18 | |
| 15114659463 | carbon importance | makes up macromolecules for energy | 19 | |
| 15114672858 | nitrogen importance | makes up our DNA, proteins, etc. that is needed for structure | 20 | |
| 15114677288 | phosphorus importance | makes up ATP and RNA | 21 | |
| 15114733532 | large water reservior | ocean | 22 | |
| 15114733533 | small water reservoir | groundwater and ice caps | 23 | |
| 15114747997 | percent of earth's water supply available as liquid freshwater | 2.5% | 24 | |
| 15114769127 | runoff | -Water that moves across the land surface and into streams and rivers -land to sea | 25 | |
| 15114776130 | infiltration | -the process by which water on the ground surface enters the soil -ground to soil | 26 | |
| 15114783410 | precolation | -downward flow of groundwater through soil and rock -soil to groundwater storage (aquifer) | 27 | |
| 15114793369 | evaporation | liquid to gas | 28 | |
| 15114796399 | transpiration | -in plants -liquid to gas | 29 | |
| 15114803951 | condensation | gas to liquid | 30 | |
| 15114807301 | percipitation | gas to liquid/solid | 31 | |
| 15114827664 | watershed | land area that delivers runoff to a stream | 32 | |
| 15114840025 | groundwater | precipitation infiltrates the ground and is stored in soil/rock | 33 | |
| 15114846833 | surface runoff | water that does not sink into the ground or evaporate, runs off into bodies of water | 34 | |
| 15114857404 | aquifer | underground cavern which groundwater flows | 35 |
