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22 Cards in this Set

  • Front
  • Back
matter (nutrients) is _____ within the environment, energy _____ through environment!
recycled, flows
nutrient cycle
transportation or biotic transformation of nutrients within an ecosystem
vehicles of nutrient cycles
atmosphere, hydrosphere, soil
major storehouse for nutrients in atmospheric cycle; occurs locally, regionally, and globally (air moves, takes emitted particles other places)
aquatic systems; 3 states of water (solid ice, liquid water, gaseous vapor); ocean is a storehouse for nutrients; occurs locally, regionally, and globally; 72% covers the earth
sedimentary processes typically slow cycles/processes not in a gaseous state (normally dissolved particles); phosphorous (PO4)3- is the main nutrient and limiting nutrient for plants (needed for root growth); earth’s crust is a storehouse for nutrients locally and regionally (local geological events -- weathering, erosion, earthquakes; not global because rocks aren’t usually transplanted long distances)
water cycle
evaporation, transpiration, condensation, precipitation, runoff/respiration
caused by sun beating down on water; most water vapor comes from oceans
plants release water vapor through leaves during photosynthesis
water vapor turns into liquid droplets and usually forms a cloud
condensation nuclei
dust particles (particulate matter—dirt, pollen, pollutants in the air); increased by humans through pollution, erosion (dust-bowls, hydrology); increased clouds = increased rain, maybe a good thing? NO. (global dimming—)
rain, snow, sleet, hail
penetrate ground into groundwater OR return to stream OR be absorbed by plants
movement of groundwater
consistent…slowly seeps back into water systems --groundwater flow
underground layer of rock that is permeable to water (permeable component of rock that allows water to get in)
water table
the level of water stored within the crust of the earth (goes up in wet season, down in dry season) – plants absorbing groundwater make it go down in a dry season
human impacts on water cycle
1. usage/uptake of water (mostly in developed nations) – irrigation, industry, domestic use
2. water pollution – alteration of quality or usable water
3. development alters – topography, soil permeability (compaction—walk on it, urbanization, drive on it – make it impermeable), area of permeable soil, harvest plant material (more sunlight decreases water in soil)
carbon cycle
*associated with organic compounds
*energy that is used in an ecosystem is typically stored in a carbon based molecule (glucose)
*carbon dioxide also serves as a thermo-regulating gas (greenhouse gas)
*largest store of carbon is in sedimentary rocks (limestone)*carbon is released by leaching, acid deposition, burning fossil fuels
human impacts on carbon cycle
*burning fossil fuels/wood/living organisms
sources of carbon dioxide for RELEASE into atmosphere
*burning fossil fuels/wood
*diffusion from oceans
*weathering of sedimentary rocks (limestone)
sources of carbon dioxide REMOVAL from atmosphere
*diffusion of CO2 into oceans
*wetland storage (swamps and bogs store a lot of organic matter)
*burial/decaying of organic matter
the warmer air/water is, the ____ gas it will hold