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6549326464Natural Radioactive Decayunstable radioisotopes decay releasing gamma rays, alpha and beta particles0
6549348308Nuclear Fissionnuclei of isotopes split apart when struck by nuetrons1
6549353682Nuclear Fusion2 isotopes of light elements forced together at high temperatures until they fuse to form a heavier nucleus2
6549365541Orea rock that contains a large enough concentration of a mineral making it profitable to mine3
6549374544Mineral Reserveidentified deposits currently profitable to mine4
6549389309Humusorganic dark material remaining after decomposition of by microorganisms5
6549401911Leachingremoval of dissolved material from soil by water moving downwards through soil6
6549408933Loamperfect agricultural soil with equal parts of sand silt and clay7
6549433272Hydrolic Cycle Componentsevaporation, transpiration, runoff, condensation, precipitation, and filteration8
6549446143Cone of Depressionlowering of the water table around a pumping well9
6549454482Salt Water Intrusionnear the coast, over pumping of ground water causes saltwater to move into the aquifer10
6549462494ENSOEl Nino Southern Oscillation, trade winds weaken and warm surface water moves toward South America. Diminished fisheries off South America, drought in western pacific, increased precipitation in in southwestern North America, fewer Atlantic hurricanes11
6549486128La NinaNormal year, easterly trade winds and ocean currents pool warm water in the eastern Pacific, allowing up welling of nutrient rich rich water off the West coast of South America12
6549540125Phosphorusdoes not exist as a gas; released by weathering of phosphate rocks, it is a major limiting factor for plant growth, cycle is slow, and not asmopheric13
6549553845Photosynthesisplants convert CO2 into complex carbohydrates14
6549562898Aerobic Respirationoxygen consuming producers, consumers and decomposes break down complex organic compounds and convert C back into CO215
6549583868Largest Reservoirs of Crabon1)carbonate rocks 2)oceans16
6549590567Biotic/Abioticliving and nonliving components of an ecosystem17
6549598595Producer/Autotrophorganisms that make their own food-photosynthetic life18
6549604181Trophic Levelsproducers-primary consumers- secondary consumers-tertiary consumer19
6557114982Primary Successiondevelopment of communities in a lifeless area not previously inhabited by life20
6557119362Secondary Successionlife progress where soil remains21
6557124902Mutualismsymbiotic relationship where both organisms benefit22
6557130058Commentualismsymbiotic relationship where one organism benefits and the other is unaffected23
6557134614Parasitismrelationship in which one organism obtains nutrients at the expense of the host24
6557165705Thomas Malthashuman population cannot continue to increase, consequences will be war, famine etc.25
6557172960Doubling Time70 divided by the percent growth rate26
6557180921World Populationslightly over 6 billion27
6557197109Composition of Water on Earth97.5% seawater, 2.5% freshwater28
6557209286BODbiological oxygen demand, amount of oxygen needed by aerobic decomposers to break down organic materials29
6557221514Eutrophicationrapid algal growth caused by excess nitrogen and phospherous30
6557224685Hypoxiawhen aquatic plants die, the BOD rises as aerobic decomposers break down the plants, the DO drops and the water cannot support life31
6557247689Nitrogen Oxidesmain source is car exhaust. leads to the acidification of lakes, respiratory irritation, and smog.32
6557261380Ozonesecondary pollutant, causes respiratory irritation and plant damage33
6557264789Sulfur Oxidesprimary source is coal burning34
6557270812Carbon Oxidescaused by burning fossil fuels, incomplete combustion35
6557279328Photo Chemical Smogformed by chemical reactions involving sunlight36
6557284808Acid Depositionscaused by sulfuric and nitric acids resulting in lowered pH of surface waters37
6557302865Incenerationvolume of waste is reduced by 90% and waste heat can be used, however it leads to toxic emmisions38
6557326420Petroleum Formationsmicroscopic aquatic organisms in sediments converted by heat and pressure into a mixture of hydrocarbons39
6557334078Coal Formationpeat,lignite, bituminous coal, anthracite coal40
6557338418Nuclear Reactorconsists of a core,control rods,moderator, steam generator,turbine, containment building41
6557348642LD 50the amount of chemical that kills 50% of the animals in a test population42
6557352621Mutagencauses hereditary changes43
6557356249Teratogencauses fetus deformaties44
6557361127Carcinogencauses cancer45
6557364642Mineral Depositsmost abundant at conergent plate boundries46
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