Which of the following defines renewable energy?

Renewable energy is defined as energy derived from sources that are constantly being replenished within a human timescale. This includes resources such as solar, wind, hydro, and geothermal energy, which can be harnessed repeatedly without the risk of depletion as they are naturally occurring processes.

For instance, the sun provides solar energy daily, and wind energy can continuously generate electricity as long as the wind blows. This characteristic is what sets renewable energy apart from non-renewable energy sources, like fossil fuels or nuclear energy, which can be depleted or require extensive geological processes to form over millions of years. Thus, the essence of renewable energy lies in its sustainable nature and the ability to be used repeatedly without depleting the resources from which it is derived.