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Fire is a rapid chemical reaction in which a combustible substance reacts with oxygen in the presence of sufficient heat, producing heat, light, flames, smoke, and various combustion products. In hazardous material management, proper classification of fire is essential because different types of fires require different extinguishing agents and emergency response procedures. Using an unsuitable extinguishing agent can increase the severity of the incident, especially when hazardous chemicals are involved. Fire is commonly classified into different classes according to the type of fuel involved. Class A fires involve ordinary combustible solid materials such as wood, paper, cloth, rubber, plastics, and many forms of waste. These materials generally produce glowing embers when they burn. Water is commonly effective for Class A fires because it cools the burning material and reduces its temperature below _______ ________ _____ ______ _________ _____ ___ _________.
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