Energy production methods fall into two fundamental categories. One relies on resources that naturally replenish over relatively short periods, such as solar radiation, wind, water flow, and geothermal heat. The other utilizes... Read more »
Substances extracted from the Earth that form naturally but at a rate far slower than human consumption are considered finite. Fossil fuels, such as coal, oil, and natural gas, exemplify this category.... Read more »
Energy sources are broadly categorized by their replenishment rates. Five examples of resources that regenerate on a human timescale include solar, wind, hydro, geothermal, and biomass energy. Conversely, five examples of resources... Read more »