What is the Process by Which Substances Scatter Themselves Evenly

Question

What is the process by which substances scatter themselves evenly throughout an available space?
A) osmosis
B) diffusion
C) filtration
D) dialysis

Accepted Answer

Diffusion is the process by which substances scatter themselves evenly throughout an available space. Osmosis is the movement of water molecules across a selectively permeable membrane from an area of lower solute concentration to an area of higher solute concentration. Filtration is the separation of substances based on differences in their physical and chemical properties. Dialysis is the separation of small solutes from large solutes using a semipermeable membrane.