How do renewable energy sources differ from non-renewable energy sources?

Renewable energy sources can be replenished naturally, which is the key distinguishing feature that sets them apart from non-renewable sources. Renewable energy comes from natural processes that are continuously replenished, such as solar, wind, hydro, and geothermal energy. These sources are part of the natural ecosystem and can regenerate over short periods of time, thereby providing a sustainable energy supply without depleting resources.

In contrast, non-renewable energy sources, such as fossil fuels (coal, oil, and natural gas) and nuclear energy, are finite and will eventually run out. These energy sources take millions of years to form and cannot be replenished on a human timescale. While non-renewable sources may sometimes be more economically viable in the short term, their depletion and associated environmental impacts pose significant long-term challenges. Therefore, the ability of renewable sources to be naturally replenished is crucial for sustainable energy development and environmental stewardship.