Alternative Types of Energy

     Today, as the world’s resources are being used by a rapidly growing population, it is important to study the natural resources which have existed since time immemorial. There are several options: solar energy, wind power, water and geothermal energy. Solar energy is possible all over the world, and is already being used at the industrial and domestic level. Wind power is being used in some parts of the world, and has become an inexpensive solution in all of them.  Hydroelectric plants take advantage of the power of running water and convert it to electricity. Areas which are on or near volcanic zones can take advantage of the thermal energy inside the earth for many purposes.