CombustionCombustible and Non-Combustible SubstancesProducts of CombustionTypes of CombustionConditions Necessary for CombustionFlame Colour of FlameTypes of FlamesCombustion of Wax CandleFuelsTypes of FuelsCharacteristics of FuelsCharacteristics of an Ideal FuelBurning of Fuels Leads to Harmful ProductsGlobal WarmingGreenhouse EffectAcid RainSome Commonly Used FuelsHydrogenCompressed Natural Gas (CNG)Liquefied Petroleum Gas (LPG)Sun a Source of EnergyFirefightingFire ExtinguishersStructural OutlineAbridgementExemplificationNCERT CompendiumAssessment CornerArchive CornerAnswer Key