Usable sources or stores of energy.
Usable sources or stores of energy. Some energy resources, such as coal, oil, and natural gas, are non-renewable, which means there is a limited supply that will eventually run out. Renewable energy resources will not run out, and can continue to be used indefinitely. Renewable energy resources include wind, tides, biofuel and solar.
Some energy resources, such as coal, oil, and natural gas, are non-renewable, which means there is a limited supply that will eventually run out. Renewable energy resources will not run out, and can continue to be used indefinitely. Renewable energy resources include wind, tides, biofuel and solar.