Water is not used to extinguish oil fires because oil is less dense than water and will float on its surface. When water is applied to an oil fire, it can cause the burning oil to spread, potentially worsening the fire. Additionally, the water may vaporize quickly due to the heat, creating steam that can lead to explosions or further spread of the fire. Instead, foam or dry chemical extinguishers are often used, as they can suffocate the fire and prevent the oil from igniting again.
Explain briefly why water is not used to put off oil fires
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