Essay on Alternative Sources of Energy

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The law of conservation says that energy is neither created nor destroyed. When we use energy, it doesn’t disappear. We change it from one form of energy into another. A car engine burns gasoline, converting the chemical energy in gasoline into mechanical energy. Solar cells change radiant energy into electrical energy. Energy changes form, but the total amount of energy in the universe stays the same. Scientists at the Department of Energy think they have discovered a mysterious new form of energy called "dark energy" that is actually causing the universe to grow!

The simplest way to define energy is said by: the capacity to do work by moving matter against an opposing force. If neither the table
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CNG ranks relatively high in convenience and availability. CNG may be the preferred clean, alternative fuel for use in vehicles to travel on specified routes, such as delivery trucks, and return to a central yard where they can be slow-filled overnight. CNG-powered vehicles use natural gas -- the same fuel that is used by stoves, water heaters and clothes dryers -- stored in cylinders at pressures of 2,000 to 3,500 pounds per square inch. Compressed natural gas is used in light-duty passenger vehicles and pickup trucks, medium-duty delivery trucks, and in transit and school buses. LNG, on the other hand, is favored for heavy-duty applications, such as transit buses, train locomotives and long-haul semi-trucks.

Fossil fuels come under non renewable sources of energy because we burn the fossil fuel to obtain coal, oil, natural gas, petrol and etc and one day these resources will get over. Nevertheless, these fossil fuels also cause global warming because of the increasing soil and air pollution on burning.

Take for example the case of our city Power Station which runs on coal. A fuel that is obtained from wood, by chopping tress and leads to deforestation. This fuel is also difficult and hence expensive to transport. Now burning of coal also leads to air and land pollution, which leads to major problems to the
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