Which of the following is NOT a type of renewable energy?

• A. Solar power
• B. Wind energy
• C. Geothermal energy
• D. Nuclear energy

Answer: (D)

Nuclear energy is categorized as a non-renewable energy source because it relies on the fission of uranium or other radioactive materials, which are finite resources. Unlike renewable energy sources such as solar power, wind energy, and geothermal energy—these are derived from natural processes that are continuously replenished and can be harnessed without depleting the Earth's resources over time. In contrast, the materials required for nuclear power generation cannot be regenerated at the same rate they are consumed, making nuclear energy unsustainable in a long-term ecological context. Thus, while it plays a significant role in energy production, it does not fit the criteria of renewable energy sources.