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Ecology Vocab.
Test on Nov.12
18
Science
7th Grade
10/28/2009

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Term
ozone
Definition
a toxic form of oxygen
Term
incinerate
Definition
the burning of solid waste
Term
geothermal energy
Definition
heat from Earth's interior
Term
chlorofluorocarbons
Definition
human-made gases containing chlorine and fluorine
Term
leachate
Definition
polluted liguid produced by water passing through burried wastes in a landfill
Term
erosion
Definition
the process by which water, wind, or ice moves particles of rock and soil
Term
fossil fuel
Definition
an energy-rich substance (such as coal, oil)
Term
Hydroelectirc power
Definition
electricity produced using the energy of flowing water
Term
radon
Definition
a cordless, odorless radioactive gas
Term
emissions
Definition
pollutants that are released into the air
Term
biomass fuel
Definition
wood that belongs to a group of fuels that are made from living things
Term
conservation
Definition
a practice to reduce energy
Term
pesticide
Definition
a chemical that kills crop destroying organisms
Term
hazardous waste
Definition
a material that can be harmful if it is not properly disposed
Term
desertification
Definition
the advance of desert-like conditions into areas that previously were fertile
Term
Nutrient Depletion
Definition
the situation that rises when more soil nutrients are used then decomposers can supply
Term
temperature inversion
Definition
a condition in the Earth's atmosphere in which a layer of warm air traps polluted air close to Earth's surface
Term
biodegradable
Definition
capable of being broken down by bacteria and other decomposers
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