Why do we wrap a blanket around a person whose clothes have caught fire?

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Solution

For a fire to burn, all three elements $-$ heat, fuel and oxygen $-$ of the fire triangle must be present. If any of these is cut off, fire will be put out. When a fire blanket completely surrounds the person whose clothes caught fire, it seals the person’s body surface around the fire and cuts off the oxygen supply to the fire; thereby, putting out the fire . Thus, fire blanket acts as a fire extinguisher and stops the fire from spreading.

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