The correct choice is d, the burning if fossil fuels because fossil fuels do a lot of harm to the world.
thanks my man :) have a gud day
Osama bin laden is the answer and i know its true because he coordinated 911
electrical energy into thermal energy. Think of it this way you plug in the iron to the wall and you know electricity makes things work when u plug it in and an iron is using heat to straighten things. HOPE THIS HELPS!!!