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How are coal and oil made?

Updated: 9/22/2020
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Wiki User

15y ago

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coal and oil are made by animals

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15y ago
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Anonymous

Lvl 1
3y ago
Animals do not make coal and oil. Coal and oil are made by chemical processes. 
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Anonymous

Lvl 1
3y ago

Coal and oil are made by the CONVERSION of organic matter over time along with pressure and temperature in the earth. Coal is composed of preserved plant matter (Trees, ferns, etc, - think of a swamp) that is buried and compacted by overlying sediments to result in coal. Oil is organic matter that has undergone a phase transformation FROM a solid organic matter TO a liquid with much associated gas. Hear drives this conversion. The oil precursor Is usually algae, but it can also be bacteria or, in rare cases, wood. Neither coal or oil is “made by animals” They both originate from dead plants but are “made” by chemical reactions driven by heat and pressure.

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Q: How are coal and oil made?
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