Coal, oil, and natural gas
A combustion engine powered by fossil fuels is a common source of heat and power. It generates energy by burning fuel to produce heat, which is then converted into mechanical power.
The source that solar power generates electricity is the sun. All solar power is generated by the sun. The sun's energy is consumed by solar powered objects.
sun
sun
The sun
well, you have renewable energy such as wind power, wave power etc... all this generates electricity without burning fossil fuels
fossil fuels can be used as an energy source to power all vehicles and most machinery
power plants fueled by fossil fuels
the different types of fuels that can be used to produce electricity
the different types of fuels that can be used to produce electricity
They have been the most efficient energy source available
Well there are: *Solar energy *Wind power *Fossil fuels *Nuclear fuels (but some nuclear fuels e.g. plutonium are not found in nature, thus are secondary sources) *Geothermal power *Tidal power *Wave power * and Biomass