We require different sources of energy to live and work. Solar, wind, geothermal and biomass are some of the sources. In addition to being the primary source of electricity, these sources can also be used for transport and heating. They can also emit greenhouse gases when used to generate electricity. This means that there is a need for greener sources of energy.
Fossil fuels are the most popular type of energy. They include oil, coal and natural gas. They were formed millions of years ago when prehistoric animals and plants died and were then buried under layers of sedimentary rocks. In the right conditions they were gradually transformed into carbon-rich substances that, when burned produce energy. These fossil fuels are not renewable since they will be exhausted in our lifetimes, or in many lifetimes.
Renewable energy sources On the other hand are constantly replenished. The sun is the most important source of renewable energy, since it provides light and heat. It is used for our homes, businesses, and cars. Wind is a different renewable energy source, which generates electricity by spinning turbines. We have been using it since we first discovered how to harvest the wind for millennia. We use biological processes produce ethanol (a clear, alcohol-like substance that can be used as fuel) from the waste of crops and other materials.
Of all these sources hydropower is by far the https://leonardogiombini.it/2018/11/17/dal-protocollo-di-kyoto-e-oltre/ most important renewable energy source in the United States, though wind and biofuels are likely to become the leading source of energy in the near future. Hydropower relies on nature’s water cycle to harness the power of fast-flowing water, which is used in turn to produce electricity.