Coal and oil provide a great energy sources and can be sold for a profit too.
fossil fuels
fossil fuels and uranuim
Some resources are in danger of running out - most notable, fossil fuels.
Fossil fuels include the Natural gases, the Petrol, the Coal.
The resources that are non fossil fuels are called unlimited resources.
Fossil Fuels, Metal, Stone and Animal Byproducts
fossil fuels
they are renewable resources
24%
fossil fuels
Onced used ,it takes many millions of years to replace fossil fuels.
Fossil fuels