Yes. Unless they are under sail or being paddled. However even sailing boats have an axillary engine.
Burn less fossil fuels
Energy led human to burn more fossil fuels
things such as cars plans and certain factories burn fossil fuels
they burn fossil fuels like coal, fuel oil, and oil shale
Yes they do!
no
burn fossil fuels or turbines or hydro or wind
We should not burn fossil fuels.
When we burn fossil fuels, that fossil fuel is gone. *POOF!* And it'll take millions of years for the nonrenewable resource to form again. Therefore we need to conserve fossil fuels as much as possible.
Burn it
They set fire to them
We burn them