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  natural gas was first used around 1785 to light houses and street lights and in 1816 the whole city of Baltimore was powered by natural gas.
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  uses the suns rays and transforms them into energy by using solar panels. first solar cell was invented in 1833.
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  a light fuel oil obtained by distilling petroleum, used especially in jet engines and domestic heaters and lamps and as a cleaning solvent.
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  the first succesful oil drill was in 1859. It was mainly used in automobiles and other engines.
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  a liquid mixture of hydrocarbons that is present in certain rock strata and can be extracted and refined to produce fuels including
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  Coal started being widely used in 1875. mainly used for heating or to power engines like locomotives or boats.
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  Hydroelectric power is made by running water that push generators and create energy.
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  Gasoline was invented in 1885 but was not used much as there was not many automobiles around at the time.
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  Uses the power of the wind to turn blades on wind turbines and turns that motion into energy.
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  nations most important air pollution law.
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  requires industries to reduce or eliminate point source pollution into surface waters.
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  protected drinking resources