1. * Hernández Hernández Alejandra *Martínez Guzmán Brenda *Sánchez de Jesús Ytzel Anahí *Ramírez Ramírez Jessica *Valencia Vergara Emanuel

9. The incorporation of a domestic solar hot water in residential homes has becomeincreasingly popular in recent years. The basic concept of all systems solar hot water is to use the sun's energy to heat or preheat water, thereby reducing the requirements for gas or electricity to produce hot water. Solar water heater

10. Wind energy is the energy from the wind, ie, the kinetic energy generated by the effect of air currents, and is transformed into other useful forms of human activities. The wind comes from the Latin term aeolicus belonging or relating to Aeolus, god of the winds in Greek mythology. Wind energy has been used since ancient times to move the ships powered by sail or operate the machinery of mills to move their blades. Wind Power

11. Un vehículo eléctrico es un vehículo de combustible alternativo impulsado por uno o más motores eléctricos. La tracción puede ser proporcionada por ruedas o hélices impulsadas por motores rotativos, o en otros casos utilizar otro tipo de motores no rotativos, como los motores lineales, los motores inerciales, o aplicaciones del magnetismo como fuente de propulsión, como es el caso de los trenes de levitación magnética. An electric vehicle

12. The hydrogen fuel cell was invented in the mid-nineteenth century and a century later began to be used by NASA for space travel. By combining hydrogen and oxygen fuel cells can produce enough electricity emit only pure water as waste. They are so clean that astronauts actually drink the water produced by fuelcells shuttle. Hydrogen can be obtained from fuels such as natural gas. Hydrogen Battery