Yes it is diffusion ..
explanation :
diffusion is the movement of particles from high concentration to low concentration ..
as the smoke rises at one corner of the room soon it spreads all over the room which is simply diffusion ..
Answer:
You can Google it get some info the write it as your own just change some words.
Explanation:
Your welcome.
sorrowful.
He is sad that they pulled her away.
They all contain three quatrains and a couplet.
