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Science
UNIT 4
Question | Answer |
---|---|
Renewable resource | Can be replaced within the human life span |
solar energy | radient energy emitted by the sun |
biomass fuels | renewable resource |
geothermal energy | heat energy |
nonrenewable resource | Can not be replaced within the human life span |
fossil fuels | a hydrocarbon deposit such as petroleum, coal or natural gas |
solar thermal system | technology that uses the sun's energy |
photovoltaic system | solar power system |
passive solar system | use of the sun's energy for heating and cooling living spaces |