COAL WASTE Crossword Clue
COAL WASTE Crossword Clue
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Crossword Puzzle Infos
The term COAL WASTE can be summarized as the by-products of burning coal, which are known as SLAG. SLAG is a glassy, granular material that is created when coal is burned at high temperatures. It is composed of various minerals and metals, including iron, calcium, magnesium, and aluminum. SLAG is often used in construction and road building, and can also be used as a fertilizer.