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20 Cards in this Set
- Front
- Back
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renewable energy
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Energy form sources that are always being formed
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compost
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a mixture of decomposing organic matter that is used as soil conditioner
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Alternative energy
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Energy that does not come from fossil fuels and is still in development
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Fuel Cell
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a device that produces electricity chemically by combining hydrogen fuel with oxygen from the air
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Leachate
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a liquid that has passed through solid waste and has extracted materials from that waste, such ha pesticides in the soil
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oil reserves
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Oil deposits that are discovered and are in commercial production
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Petroleum
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a liquid mixture of complex hydrocarbon compounds used widely as a fuel source
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Nuclear Energy
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the energy released by a fission or fusion reaction
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Energy efficiency
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the percentage of energy put into a system that does useful work.
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Recycling
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the process of recovering valuable or useful materials form waste or scrap: reusing some items
Ex: Plastic |
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Hydroelectric energy
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electrical energy produced by falling water
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Biodegradable material
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Material that can be broken down by biological processes
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Mineral
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a natural inorganic solid with a set of chemical properties
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solid waste
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a discarded solid material such as garbage.
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energy conservation
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the process of saving energy by reducing energy use and waste
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Passive solar heating
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the use of sunlight to heat buildings directly
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Hazardous wastes
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wastes that are a risk to the health of humans
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Geothermal energy
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energy produced by heat withing the earth
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fossil fuels
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a nonrenewable energy resource formed long ago
Ex: oil, coal, natural gas |
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landfill
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an area of land where wastes are placed for disposal.
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