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Discussion :: Environmental Science

  1. Which of the following is a nonrenewable energy resource?

  2. A.

     Solar

    B.

     Methane

    C.

     Hydroelectric

    D.

     Coal

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    Answer : Option D

    Explanation :

    Most non-renewable energy sources are fossil fuels: coal, petroleum, and natural gas. Carbon is the main element in fossil fuels. For this reason, the time period that fossil fuels formed (about 360-300 million years ago) is called the Carboniferous Period.


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