A renewable resource is characterized by:

A renewable resource is best characterized by being replenished naturally within a relatively short timescale after it has been used. This definition highlights the importance of sustainability in resource management; renewable resources can continually provide benefits without depleting the total available stock, as long as they are used responsibly and managed effectively.

Examples of renewable resources include solar energy, wind energy, and biomass, all of which can regenerate or be replenished effectively in a short period compared to non-renewable resources like fossil fuels, which take millions of years to form. This distinction is crucial for promoting sustainable practices that protect the environment while meeting human needs.

In contrast, options describing a resource that cannot be replenished, is available indefinitely regardless of use, or is only found underground do not accurately reflect the characteristics of renewable resources, as they focus on aspects that do not align with the nature of sustainability and regeneration inherent in renewable resources.