What do we call power sources that are naturally replenished?

The correct answer refers to energy sources that can be replenished naturally over a short period of time. Renewable power sources include solar, wind, hydroelectric, and geothermal energy, among others. These sources are characterized by their ability to be regenerated through natural processes, which means they can provide a sustainable form of energy without depleting the Earth's resources.

For instance, solar panels harness energy from the sun, which is continuously available and not exhausted by usage on Earth. Similarly, wind energy uses the wind created by atmospheric conditions, which is also a constant phenomenon. This sustainability is crucial as it offers a long-term solution to energy needs while reducing dependency on resources that cause environmental harm, like fossil fuels.

Other options represent energy sources that are either finite, like fossil fuels, or do not directly pertain to the concept of natural replenishment. Non-renewable sources can lead to resource depletion and environmental concerns, while the term "environmental sources" is vague and does not specifically capture the idea of renewable energy.