Because fossil fuels like coal and oil do not just grow back when it's been used, there is only so much of it in the world, making it non-renewable energy
The resources that are non fossil fuels are called unlimited resources.
They are called renewables. (though strictly, nuclear power is not a fossil fuel and is not renewable).They are called alternative energy sources.
This kind of energy is called renewable energy.
Fossil fuel. Also, natural gas is in the category of fossil fuels.
Geothermal energy is not a fossil fuel, because it is harnessing energy from the thermal heat energy within the earth and is not dependent upon decomposed ancient plants and animals, which is what coal, oil, and natural gas are, which is why they are called "fossil fuels."
Yes, that's where it is usually believed that fossil fuels come from - and that's why they are called "fossil" in the first place.
Renewable energy resources.
Energy resources that are not fossil fuels are often collectively called "renewable resources." These include wind, solar, hydroelectric, geothermal energy sources.
they produce energy in a more environmentally friendly way then fossil fuels do
the energy that is in fossil fuels is chemical and radiant energy.
Fossil fuels can be burned to release the potential chemical energy stored millions of years ago.The process of burning fuels is called Combustion.
Wood is a fuel as it can provide energy by burning. But, it is not formed by fossils and hence not called a fossil fuel.