Which of the following describes a renewable resource?

A renewable resource is defined as a resource that can be used repeatedly and naturally replenished within a human lifespan. This encompasses resources such as solar energy, wind energy, and biomass, which can be harnessed and regenerated without the fear of depletion over a typical time scale. The usage cycle of these resources does not lead to permanent loss; rather, they can consistently provide energy or materials as long as their source is managed responsibly.

The other choices do not fit the definition of renewable resources. For instance, resources that cannot be replenished—like fossil fuels—are classified as non-renewable. Similarly, a resource that decreases over time would imply depletion, which contrasts with the idea of renewability. Man-made resources, while they may be sustainable, do not characterize the natural recurrence intrinsic to renewable resources. Thus, the description of a renewable resource aligns best with the option that emphasizes repeated use.