Definition and types of energy sources, energy Basic knowledge about solar, wind, geothermal. Energy water Energy, wave power, tidal Magnetic energy Bio-energy.
The definition of energy sources and energy knowledge about solar energy, wind energy, geothermal energy, wave energy, tidal energy. magnetic energy bioenergy
The meaning and the type of energy, energy source, basic knowledge about solar energy, wind energy, geothermal water. Power, energy, tidal energy, magnetic energy.