Fossil fuels are made from decayed fossil material found below the surface of the Earth. Nuclear fuel is made from generating nuclear fission or fusion.
Nuclear energy does not come from fossil fuels
There is no such thing as a "fossil of nuclear fuels".
fossil fuel is made by the nature and nuclear fuel is not made by the nature
It burns fossil fuels
nuclear energy gives out less waste, no carbon dioxide and is cheaper than fossil fuels
Nuclear fuels are extremely dangerous and the station could explode.
Both fossil fuels and nuclear energy can be used to make electricity, which is used to power machines.
Fossil fuels are coal, oil, natural gas. Nuclear fission requires uranium or plutonium.
There are lots of non-fossil fuels, fossil fuels are non-renewable, other fuels such as wind power or water power are renewable meaning they can be replaced, nuclear power and wood are also non-fossil fuels.