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  1. For extinguishing fire, we use
    1. Hydrogen
    2. Carbon Monoxide
    3. Carbon Dioxide
    4. Marsh gas
Correct Option: C

Fire extinguishers use carbon dioxide to displace the oxygen necessary for a fire to burn, extinguishing the blaze. Fires need oxygen, fuel, and heat to ignite, and removing any one of those three components can put out a fire. It is useful for electrical fires and some flammable liquid fires, but may make some gasoline or paper fires worse by dispersing burning material.



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