Answer:
The dots represent that diffusion has already occurred.
Step-by-step explanation:
Perfumes are nothing but gases when tesla spray it in a corner of room are given free access a room, their particles blend in with the particles of air. The particles of gas are allowed to move rapidly every direction. They in the end spread through the entire room to a area of low concentration from the high concentration.
Thus, the dots represent that diffusion has already occurred.