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what major sources of nonrenewable energy do we use?
crude oil and petroleum energy
what does crude oil contain?
combustible hydrocarbons, sulfur, oxygen, and nitrogen impurities
what is OPEC?
organization of petroleum exporting countries
crude oil benefits?
medium net energy yield, easily transported, efficient distribution system
how is natural gas extracted?
brought up from underground reservoirs in the liquid state and removed as liquified petroleum gas (LPG)
natural gas benefits
medium net energy yield, low land use at extraction site, easily transported via pipeline, less CO2 and air pollution burned compared to other fossil fuels
coal energy formed from
fossil deposits
3 types of coal
ignite, bituminous, and anthracite - generates 45% of worlds electricity
coal benefits
high net energy yield and most abundant fossil fuel
synthetic natural gas
turns solid coal into liquid fuel - requires 50% more coal
nuclear energy benefits
reduce dependence on foreign oil, large reserves, less air pollution compared to other fossil fuels
nuclear fusion
two isotopes forced together
Note 
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