Which statement best describes a renewable resource?

• A. It can be replenished naturally, such as sunlight or wind.
• B. It is always finite and nonrenewable.
• C. It is not useful for energy production.
• D. It cannot be replenished.

Answer: (A)

Renewable resources are those that can replenish naturally over time. Sunlight and wind fit this because the sun continues to shine and the wind keeps blowing, so these energy sources are available again and again. Because they regenerate, they don’t run out on human time scales, making them renewable. The other ideas describe resources that would be finite and nonrenewable, aren’t useful for energy, or cannot be replenished, which doesn’t describe renewables.