alternative resource or just alternative
The sun!
decayed organisms
fossil fuels can be used as an energy source to power all vehicles and most machinery
Fossil fuels are exhaustible. Electric energy is an alternative.
Fossil fuels.
Fossil fuels are a non-renewable energy source.
fossil fuels
all nonrenewable fuels can be traced back to the sun as a primary energy source
coal
Fossil fuels
wind is a renewable energy source ,while fossil fuels are nonrenewable .
they do but it can hurt the enviorment
Fossil fuels