(i) Energy harnessed from the heat of the sun is called Geo thermal energy.
(ii) Magma is formed when this heat melts the rocks. The molten rocks and hot gases are called magma
(iii) The magma gets collected at some depths below the earth’s surfaces. These places are called “Hot spots”
(iv) When underground water comes in contact these hot spots, it changes into steam, which can be used to generate electricity.
• Advantages of Geo thermal energy:
(i) Renewable
(ii) Inexpensive
• Disadvantages of Geo thermal energy:
(i) Only few sites available for harnessing energy.
(ii) Expensive
