Different Energy Sources

Different Energy Sources

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Different energy sources supply us with the power we need to live and work. Geothermal, solar, wind and biomass are some of the sources. In addition to being a major source of electricity, these sources can also be used to transportation and heating. These energy sources can emit greenhouse gases when they are used to generate electricity. This leads to the need for greener sources of energy.

The most widely used type of energy is the fossil fuels, comprised of coal, oil, and natural gas. They were formed millions of year ago when prehistoric animals and plants died and were buried under layers of sedimentary rocks. Under the right conditions the fossil fuels gradually transformed into carbon-rich substances that, when burned create energy. These fossil fuels cannot be recycled since they will exhaust within our lifetimes or in many lifetimes.

Renewable energy sources are constantly replenished. The sun is the most important source of renewable energy because it is a source of heat and light. We use it for our homes, businesses, and cars. Wind is an energy source renewable that produces electricity by spinning turbines. Since the first people discovered how to harness wind in the past, we have been using it for millennia. We use biological processes to create an ethanol (a clear, alcohol-like substance that can be used as fuel) from food waste and crops.

Among these sources hydropower is by far the most important renewable energy source in the United States, though wind and biofuels are expected become the leading source of energy in the near future. Hydropower relies on nature’s cyclic water cycle to harness the power of flowing water, which is used in turn to produce electricity.