While the fossil fuels we use today were formed millions ... which are the building blocks of petroleum itself — involves a number of different stages that take place over millions of years ...

I’ll see if I can find a different fuel, one that can make heat ... gases that can cause pollution and climate change like fossil fuels do. And talking of burning, I think I’d better put ...

The major types of fuel used for transportation ... Electricity (produced from many different energy sources, many of which are fossil fuels). Of these, approximately 90 % of the UKs energy ...