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What is a coal ​

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What is a coal ​

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Quinn 2 years 2021-07-08T04:55:08+00:00 2 Answers 0 views 0

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    0
    2021-07-08T04:56:39+00:00

    Answer:

    Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy source because it takes millions of years to form. Coal contains the energy stored by plants that lived hundreds of millions of years ago in swampy forests.

    0
    2021-07-08T04:56:44+00:00

    Coal is a combustible black or brownish-black sedimentary rock with a high amount of carbon and hydrocarbons. Coal is classified as a nonrenewable energy source because it takes millions of years to form. Coal contains the energy stored by plants that lived hundreds of millions of years ago in swampy forests.

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