The National Academies
What You Need To Know About Energy
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Energy Hands-on
Understanding Efficiency
Learn the significance of energy efficiencyOur Energy System
A visualization of all our energy sourcesWhat do you know about energy?
Which energy sources together account for 84% of the energy used in the United States?
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Sorry, that’s incorrect.
Fossil fuels (petroleum, natural gas, and coal) account for 84% of the energy used in the United States.
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Correct!
Fossil fuels (petroleum, natural gas, and coal) account for 84% of the energy used in the United States.
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Sorry, that’s incorrect.
Fossil fuels (petroleum, natural gas, and coal) account for 84% of the energy used in the United States.
