Question

how can we smell perfume sitting serval meters away from the source?
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Answer 1

Answer:

because smell of perfume ,it is gas and we know that gas can easily move as this is its property .

Explanation:

so smell of perfume get into the space between the air particles as particles of areair are so loosely packed or so loose so you get the smell far sitting several meters away from source.

and even the air move also.

hope this help you