“Electricity is derived from many non-renewable energy sources like oil, natural gas and coal.” EnergyNaturalSourceHairOilGasElectricityCoalRenewable EnergyNatural GasEnergy SourcesRenewable Energy Sources Author:Lamar S. Smith
“The more energy-efficient we become as a nation, the less we need to develop additional energy sources.” NeedsEnergyNationsSourceEfficientEnergy Sources Author:Lamar S. Smith
