Answers

2014-11-05T20:21:35+05:30
Some substances have a lower combustion point and therefore they catch fire much more easily and faster as compared to other substances. The temperature at which a substance catches fire is the most important parameter in determining the combustibility of different substances.
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2014-11-05T22:29:40+05:30
COMBUSTIBLE SUBSTANCES ARE HIGHLY REACTIVE AND THEY CAN CATCH FIRE VERY EASILY AND THEY CAN ALSO EXPLODE.SO IT IS DIFFICULT TO BURN COMBUSTIBLE SUBSTANCES.
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