Question

Mname the phenomenon due to which the fragrance of incense stick could be smell

Answer 1

When we light an incense stick in one corner of room its fragrance spreads in whole room because of the process involved DIFFUSION. It is because particles of matter are continuously moving in the air. Its parties vigourously spread and we can smell its fragrance in the whole room.

Answer 2

the phenomena is that matter particles are continuously moving and diffuse into air quickly