what makes a resource renewable

A resource is considered renewable if it can be naturally replenished at or near the rate it is consumed, meaning it won't run out on human timescales. This natural replenishment is essential to ensure sustainability. Examples include sunlight, wind, water, geothermal heat, and biomass. However, the key factor that determines whether a resource remains renewable is the balance between usage and the rate of natural replenishment; if a resource is used faster than it can regenerate, it can become depleted despite being classified as renewable. Renewable resources typically have lower environmental impacts compared to nonrenewable resources, as they are naturally replenished and tend to produce fewer greenhouse gases and pollutants when used for energy.