What is the definition of a renewable resource?

A renewable resource is defined as a resource that can be replenished naturally over time, ensuring it does not run out in the foreseeable future. This typically includes resources such as solar energy, wind energy, and biomass, as these can be regenerated or sustained through natural processes.

The other choices describe characteristics that do not define renewable resources accurately. For instance, a resource that is completely safe and non-toxic does not necessarily imply its renewability, as some toxic substances can also be renewable. Similarly, resources that are consumed faster than they are replenished are categorized as non-renewable. Finally, while synthetic and man-made resources can serve various purposes, they generally do not fall under the definition of renewable resources since they are often finite and not naturally replenishable.