Resources categorized as finite and unable to be replenished at a rate that keeps pace with consumption are known as non-renewable energy sources. Fossil fuels (coal, oil, and natural gas) and nuclear... Read more »
Resources that replenish naturally within a human lifespan are considered inexhaustible. Solar energy, wind power, geothermal energy, and sustainably harvested biomass exemplify such resources. Their continual availability distinguishes them from finite reserves... Read more »
Finite resources derived from geological processes taking millions of years to form are the source of this energy type. Fossil fuels (coal, oil, and natural gas) and nuclear fuels (uranium) are prime... Read more »
Energy derived from natural sources that are replenished at a higher rate than they are consumed is categorized as sustainable. Examples include solar power harnessed from sunlight, wind power generated by wind... Read more »