What gas is required for combustion?, Nitrogen, Oxygen, Hydrogren, What is another word for burning, Combustion, Freezing, Condensing, What forms when iron reacts with oxygen?, Rust, Ice, Plastic, What energy is released during combustion?, Cold air, Heat and light, Water, Which material below is a fuel?, Water, Wood, Sand, What type of reaction is combustion?, Chemical reaction, Mechanical reaction, Physical reaction

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