We require a variety of energy sources to live and work. They include wind, solar, geothermal, and biomass sources. In addition to being the primary source of electricity they can also be used for transportation and heating. These energy sources produce greenhouse gases when burned to produce electricity. This creates the need for more sustainable energy sources.
Fossil fuels are the most popular form of energy. They include oil, coal, and natural gas. They began to form millions and millions of years ago when prehistoric plants and animals passed away and were then buried beneath layers of sedimentary rock. Under the right conditions they were slowly transformed into carbon-rich materials which, when ignited generate energy. The fossil fuels cannot be renewable since they will be depleted in our lifetimes or in a number of lifetimes.
Renewable energy sources are constantly replenished. The most important renewable energy source is sunlight, which supplies light and heat. We use description it to power our homes vehicles, businesses, and homes. Wind is another renewable energy source that generates electricity through spinning turbines. We have been using it since people first discovered how to harvest the wind for millennia. We use biological processes create the ethanol (a alcohol-like substance that is clear and transparent that can be used for fuel) from crops and waste.
Hydropower is the most important renewable energy source in America, but biofuels and wind will soon surpass it. Hydropower relies on nature’s water cycle to harness the power of swiftly flowing water, which is used to generate electricity.