This essay tell all about alternative energies and how they are important for our environment. It gives different examples of energies and tells how they are better then fossil fuels

Alternative Energy

The United States depends on fossil fuels, like oil and coal, for energy.

According to experts these get-gos willing exhaust by the year 2050. Fossil fuels

also pollute the environment. So we need to search for alternative energy

sources which are reliable and renewable.

Wind spring is the force of the drift harnessed by rangemills and plait turbines

that veer it into electricity. Because wind is a clean and renewable source

of energy, modern wind turbines are being installed in many another(prenominal) countries to

supplement more traditionalistic sources of electric power, much(prenominal) as burning coal.

After the oil crisis of the 1970s, many countries launched programs to develop

modern wind turbines. While many of these programs failed, Denmark was

successful in developing one. Countries such as the United States have adopted

this technology to develop wind energy resources. Design improvements have

helped increase the worlds wind energy generating contentedness by nearly 150

per centum since 1990. In 1997, for example, the world market for wind energy

reached billion.One major disadvantage of wind mills is that it is not so

efficient as other power generation technologies.

Hydroelectric power is the energy produced by running or falling water that is

used for driving machinery, particularly for generating electricity. The

development of hydroelectric power requires storage lakes, dams, bypass canals,

and the installation of turgid turbines and electric generating equipment.

Worldwide, hydroelectric power represented 19 percent of the total energy

generated in 1998, the most recent year for which data are available. In many

countries, hydroelectric power is the dominant source of electric power. Canada,

the largest producer of hydroelectric power in the world, generated 340.



3

billion kilowatt-hours in 1999, about 60 percent of the nations electric power.

Hydroelectric-power generation in the United States increased from about 16

billion KWH in 1920 to...

Very nicely written, however I think if you went into more detail, it would be more perspicuous and better.

This essay is ok,however, honestly i found and entire dissever word for word that match another essay I just commented on prior. I dont know which came first so I will say be careful you would not what the person next to you turn in the exact aforesaid(prenominal) essay! lol otherwise this essay was good for a 9th or 10th grader. I would not suggest upper prize students use this one

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