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Natural Gas
Natural gas definition: A fossil fuel often found in underground rock layers.
Related Terms
Biomass
Coal
Conservation
Efficiency
Energy
Fossil Fuel
Friction
Fuel
Gasohol
Geothermal Energy
Heat
Hydroelectric Energy
Insulation
Kinetic Energy
Natural Resource
Nonrenewable Resource
Nuclear Energy
Nuclear Fission
Nuclear Fusion
Petroleum
Potential Energy
Recycling
Renewable Resource
Solar Energy
Temperature
Thermal Energy
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