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Most coal comes from the Carboniferous period, which ended 290 million years ago.

Low grade lignite coals can form in a few thousand years or sometimes less, but they still contain some water and burn very poorly.

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9y ago

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Which resource takes the longest to form?

coal


Is coal a renewable energey resource?

No, not in our lifetime. It takes millions of years to form coal.


Approximately how long dose it take coal to form?

Coal typically takes millions of years to form. It is created through the transformation of plant material under high pressure and heat over prolonged periods of time.


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It is nonrenewable because it takes millions of years to form.


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How many years does it take to make coal?

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Why is there a problem with coal?

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Why is coal non-renewable?

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What changes takes place when coal is burned?

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Why is coal a non-renwable resources?

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