Petroleum.
Petroleum is the main source of energy for transportation.
petroleum
No it is its own source of energy
Chemical energy
Currently, human's conventional source of energy is fossil fuel.
Fossil fuel is not energy its a energy source and yes there is more energy sources besides the fossil fuel like coal and others.
The fossil fuel that humans use most is oil (petroleum). It is primarily used for transportation, electricity generation, heating, and manufacturing. Oil is a versatile energy source that plays a key role in the global economy.
No, geothermal energy is not considered a fossil fuel. It is a renewable energy source that comes from the heat within the Earth's crust.
Fossil fuels (coal, oil and natural gas) are a non renewable source of energy.
Solar Energy
fossil fuel
Fossil fuel.