for combustion reactions: a)air is essential b) combustible substance is essential c) Both a) and b) d) neither b) nor c)
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Both a and b is the answer.
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Answer:The Fire Triangle. Three things are required in proper combination before ignition and combustion can take place---Heat, Oxygen and Fuel. ... There must be Air to supply oxygen. There must be Heat (ignition temperature) to start and continue the combustion process.
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