We require different sources of energy to live and work. Geothermal, solar, wind and biomass are among the sources. In addition to being an important source of electricity they can also be used to heat and transport. They can also emit greenhouse gases when burned to generate electricity. This means that there is a need for more sustainable energy sources.
Fossil fuels are the most common type of energy. They include oil, coal, and natural gas. They were formed millions of years ago when prehistoric plants and animals died and were buried by layers of sedimentary rock. After that, under the right conditions, they gradually transformed into carbon-rich materials that, when ignited, generate energy. These fossil fuels won’t be renewable because they will be depleted in our lifetimes or in a variety of lives.
Renewable energy sources On the other hand are continuously replenished. The sun is the main source of renewable energy since it provides warmth and light. It is used to power our homes and businesses as well as to drive our cars. Wind is a different renewable energy source, which generates electricity through spinning turbines. Since the first time people realized how to harness the wind, we have been using it for millennia. In addition, we employ biological processes to make ethanol (a clear alcohol that can be used to create fuel) from crops and waste.
Hydropower is by far the most important renewable energy source in America, however biofuels and winds will soon take over. Hydropower draws on nature’s hydro cycle to harness the power of rapid-flowing water, which is used for electricity generation.
