I think its the Diurnal Cycle.
Diffusion is the spontaneous movement of substances from a region of high concentration to a region of low concentration.
Osmosis is the passage of water molecules from a high water concentration region through a selectively permeable membrane to a low water concentration region.
In diffusion, selectively permeable membrane is neither required nor involved while in osmosis, it is involved.
Answer:
Life Processing I Learnes this last year in 7 grades
It's a pyramid of numbers, I believe.
