Renewable Energy Sources #4

Question	Answer
Where is Geothermal energy only possible?	In volcanic areas where hot rocks lie close to the surface
How does Geothermal energy work?	Steam and hot water rise to the surface and are used to drive a generator
Give a positive aspect for geothermal energy use?	It is a source of brilliant free energy, with no environmental problems
Give two negatives about Geothermal energy.	1) There aren't many suitable locations for it 2) The cost of building a power plant is high for the amount of energy received
What are Bio fuels?	Fuels made from plants and waste
What is so special about Bio fuels?	They are renewable but are used exactly the same of fossil fuels
What is a negative about bio fuel usage?	They still pollute the atmosphere

Resource summary

	Created by Adam Collinge about 10 years ago