Which activity would you do to prove that the temperature of a substance must reach
the combustion point of that substance in order to ignite it?
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(a) Burning of wood and coal causes pollution of air.
(b) A liquid fuel, used in homes is Liquefied Petroleum Gas(LPG).
(c) Fuel must be heated to its ignition temperature before it starts burning.
(d) Fire produced by oil cannot be controlled by water
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