Answers

2016-04-23T12:43:31+05:30
Due to diffusion the fragnance spreads the whole room quickly.
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2016-04-23T12:48:09+05:30
When the incense stick is burnt then burnt gas molecule is high concentrated when compared to surrounding molecules so diffusion process occurs. like this from one molecule to other molecule and the whole room is fragranted .

same is observed in sprays
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