Answer:
Solute move when concentration is outside the system is greater than the concentration inside the system due to diffusion and Osmosis.
Explanation:
Diffusion is a movement of substance or material from the area where the concentration is higher to the area where concentration is lower. It is a type of passive transport which means requires no energy for the movement of molecules.
The second is Osmosis. Osmosis is a type of movement of molecules from higher to lower region through a semi-permeable membrane.