jueves, 14 de octubre de 2010

Energy

Today we will talk about non-renewable energy sources and renewable energy sources. The non-renewable energy sources are energies very cheap, efficient and readily available, but this type of  energy is running out and also is very polluting. The renewable energy sources are energies that won´t run out and are environmentally friendly, but this type of energy is inefficient and is geographically selected.

Non-renewable energy sources:


Coal


Oil


Natural Gas



Nuclear Energy



Renewable energy sources:


Biomass



Solar



Wind




Hydroelectric



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