what is a detailed description of geothermal energy?
how is it generated?
Where does the energy come from?
what are advantages of geothermal energy?
what are disadvantages of fossil fuels?

(may be broke/outdated!)
what is a detailed description of geothermal energy?
how is it generated?
Where does the energy come from?
what are advantages of geothermal energy?
what are disadvantages of fossil fuels?