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34 Cards in this Set

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abiotic
related to factors or things that are separate and independent from living things, Nonliving
acid
Any compound that releases hydrogen ions when dissolved in water. also a water solution that contains a surplus of hydrogen ions.
Air mass
enormous bodies of air that move as a unit
aquifer
underground layer of porous rock, sand, or other material that allows the movement of water between layers of nonporous rock or clay, frequently tapped for wells
arable
land fit to be cultivated
asthenosphere
part of the mantle just below the lithosphere
clay
The finest soil made up of particles less than .002 mm in diameter
conduction
transmission of something through a medium or passage, commonly electricity or heat, without movement of the medium
convection
vertical movement of a mass of matter because of heating and cooling.
convection currents
Air currents caused by the vertical movement of air due to atmospheric heating and cooling
humus
dark, crumbly, nutrient-rich material that results from the decomposition of organic material, with is also a product of composting organic waste.
lithosphere
outer part of earth, consisting of the crust and upper mantle, approximately 100 km thick
Hadley cell
system of vertical and horizontal air circulation that creates major weather patterns, predominately in tropical and subtropical regions
headwaters
a source
loamy
soil composed of a mixture if sand, clay, silt and organic matter
Southern oscillation
atmospheric pressure conditions corresponding to the periodic warming of El Nino and La Nina
thermosphere
outermost shell of the atmosphere between mesophere and outer space.
ammonification
production of ammonia or ammonium compound a in the decomposition of organic matter, especially through the action of bacteria
assimation
process in which plants absorb ammonium, ammonia ions, and nitrate ions through their roots
bioaccumulation
accumulation of a substance, such as a toxic chemical, in various tissues of a living organism
biomagnification
process by which the concentration of toxic substances increases in each successive link in the food chain
denitirification
process of converting ammonia to NO3, NO2, and N2 and releasing it back into the atmosphere
Gause's principle
No 2 species can occupy the same niche
Pioneer species
organisms in the first stages of succession
nitrification
process in which soil bacteria convert ammonium to a form that can be used by plants. nitrate or NO3
nitrogen fixation
conversion of atmospheric nitrogen into compounds, such as ammonia, by natural agencies or various industrial processes
Anthracite
cleanest burning coal; almost pure carbon
bituminous
Second purest form of coal
crude oil
form petroleum takes when In the ground
Hubbert Peak
theory that concerns the long term rate of conventional oil extraction and depletion
Peak Oil
lignite
least pure coal
subbituminous
third purest form of oil
gray smog
smog resulting from emissions from industry and other sources of gases produced by the burning of fossil fuels
alkaline
a chemically basic substance that absorbs hydrogen ions or releases hydroxide ions. In reference to natural water, a measure of the base content of the water.