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      Question

      Which of the following is an example of a non-renewable

      source of energy?  
      A Solar energy Correct Answer Incorrect Answer
      B Wind energy Correct Answer Incorrect Answer
      C Coal Correct Answer Incorrect Answer
      D Geothermal energy Correct Answer Incorrect Answer

      Solution

      Coal is a non-renewable source of energy because it takes millions of years to form and is finite.   Once depleted, it cannot be replenished within a human lifespan.   In contrast, solar, wind, and geothermal energy are renewable sources, as they are naturally replenished.

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