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Coal (Final)

QuestionAnswer
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%
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