(a) When an incense stick (agarbatti ) is lighted in one corner of a room, its fragracne quickly spreads in the entire room. Name the process involved in this.
(b) A girl is cooking some food in the kitchen, The smell of food being cooked soon reaches her brother's room, Explain how the smell could have reached her brother's room.
when an incense stick is lighted in one corner of a room its fragrance spread in the whole room quickly . Which characteristics of the particle is illustrated by this observation