A natural resource is defined as any material or substance found in nature that can be utilized by living organisms or technological systems. These resources are scientifically classified primarily by their rates of replenishment, dividing them into renewable and non-renewable categories. Renewable resources, such as solar energy, wind power, and biomass, are those that are naturally regenerated or reformed within a manageable timeframe, contingent upon sustainable use. Conversely, non-renewable resources, including fossil fuels and mineral ores, exist in finite quantities formed over geological timescales. Furthermore, the scope of natural resources extends beyond tangible materials to encompass vital ecological components, such as clean water and atmospheric gases, which are fundamental to biological processes and life support systems.