Which energy source is non-renewable?

Which energy source is non-renewable?

• A. Coal
• B. Solar
• C. Wind
• D. Hydroelectric

Answer: (A)

Non-renewable energy sources are finite and cannot be replenished on human timescales. Coal is a fossil fuel formed from ancient plant matter over millions of years, and we’re burning it faster than it can form. Once used, its energy is gone for good. The other options—solar, wind, and hydroelectric—rely on ongoing natural processes (the sun, atmospheric wind, and the water cycle), so they’re renewable. So coal is the non-renewable choice.

Non-renewable energy sources are finite and cannot be replenished on human timescales. Coal is a fossil fuel formed from ancient plant matter over millions of years, and we’re burning it faster than it can form. Once used, its energy is gone for good. The other options—solar, wind, and hydroelectric—rely on ongoing natural processes (the sun, atmospheric wind, and the water cycle), so they’re renewable. So coal is the non-renewable choice.