Which of the following are considered renewable energy sources?

The correct answer is the selection that includes solar, wind, and hydroelectric power, as these are widely recognized as renewable energy sources. Renewable energy sources are defined as those that can be replenished naturally within a short time frame, making them sustainable over the long term.

Solar energy harnesses power from the sun, which is abundant and will continue to be available for the foreseeable future. Wind energy captures the kinetic energy from the wind and converts it into electricity. Hydroelectric power utilizes the flow of water, typically from rivers, to generate energy, and this water cycle is naturally replenished through rainfall and natural processes.

In contrast, the other choices include energy sources that do not meet the criteria for renewability. Natural gas, coal, oil, and peat are fossil fuels derived from ancient organic materials and take millions of years to form, making them non-renewable. Nuclear power, while low in carbon emissions, relies on uranium, which also is limited in supply and not replenishable like renewable sources. Fossil fuels, including those in other options, are finite and contribute to environmental concerns such as climate change. Therefore, the selection featuring solar, wind, and hydroelectric power distinctly aligns with the characteristics of renewable energy sources.