Examlex
There has been a major decrease in the use of natural gas for home heating and industrial purposes in the United States.
Energy Resource
Any natural or artificial source of energy that can be converted into another form of energy, such as heat or electricity, to be used for power.
Oil And Gas
Natural hydrocarbons that are extracted from the Earth and used as fuel sources for heating, transportation, and the generation of electricity.
Coal
A fossil fuel consisting mainly of carbonized plant matter, found underground and used for energy production.
Oil Shale
A sedimentary rock consisting of organic materials that can be processed to produce shale oil, a type of unconventional petroleum.
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