The main type of energy used in the world is fossil fuel. Fossil fuels are called non-renewable because they are the remains of plants and small dead animals, which have been compressed. This means it takes a very long time to produce coal, oil or any other fossil fuel.

For as long as 3,000 years ago coal was being used for fuel and so soon became one of the main energy sources used around the world. However in the 1950s wood became the most popular fuel used in homes. Then in 1709 an English Iron-Maker called Abraham Darby invented a process, which used coke as a fuel in blast furnaces, this process is now known

The last renewable source I am writing about is wind energy. Small wind generators make enough electricity to run appliances like fridges and water pumps. One drawback to this energy source is, wind generators take up a very large area. An average town would need ten times its own area of wind farms to power it.

Nuclear fuel is used in electricity-generating nuclear power stations. Basic nuclear fuel is the heavy, silvery-white metal called Uranium. This naturally gives off radiation, which consists of invisible bits of atoms called alpha particles.

The question the world needs to ask is, what renewable source is going to be the best? In order to help decide this question I am going to explain a bit about Bio-fuels, Nuclear power, solar power and wind power.

One overwhelmingly powerful, sustainable energy source for the whole world is the sun. There are various ways of trapping solar energy and just as many ways of turning it into our favourit

Some common words found in the essay are:
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Approximate Word count = 645
Approximate Pages = 3 (250 words per page double spaced)