Coal is a solid fossil fuel formed when plant material is buried in oxygen-poor conditions and subjected to high heat and pressure over a long time.
- A fossil is a preserved remnant of a trace of life (e.g., a plant or an animal) that once lived in the geological past.
- Coal represents a fuel formed over millions of years by the decomposition of land plant fossils.
- The layers of land plant fossils that were compacted and heated over millions of years in the sediment turned into coal.
In conclusion, coal is a solid fossil fuel formed when plant material is buried in oxygen-poor conditions and subjected to high heat and pressure over a long time.
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