Alternative Energy Sources 2.docx

Active systems use pumps or fans for example it is

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the sun without mechanical help. Active systems use pumps or fans. For example, it is used for water heater system, electricity supply and any others. Wind energy, for example windmills, have been used for hundreds of years to grind grain and pump water. More recently, they have powered small electric generators. Researchers are developing and testing large windmills -called wind generator- that could produce electric power on large scale. From that two energy, the reason why it is called the best alternative energy, it is because it has no pollution, efficient and abundant in source. That reasons also supports the conservation program of the major energy that is most used today, petroleum, oil and gas and other natural resources that are limited in amount and cannot be renewable. Much of the interest in solar and wind energy is related to our environmental concerns about using fossil fuels as well as our safety concerns over the use of nuclear power. Solar and wind energy can also have significant benefits for local and national economies from the development of energy-producing industries that create jobs within a country. From all the passage, I can conclude that there are other ways to use our natural resources, for example sun and wind to be the energy source that can be used for many purposes and also as a growing promise for mankind in the future.
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