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Coal (Final)
Question | Answer |
---|---|
Transformed plant matter in ancient swamps | Coal |
Examples of coal | Estuaries, lagoons, low-lying coastal plains or delta environment |
How is coal classified? | Based on carbon content. calorific value on combustion, and sulfur content |
What is considered low sulfur content in coal? | <1% |
What is considered medium sulfur content in coal? | 1-3% |
What is considered high sulfur content in coal? | <3% |