Why does the Milk is called a Suspension? - QS Study
QS Study

The milk is called a suspension; because in the suspension very small particles are in floating state but they never precipitated that means it is a heterogeneous mixture, where the solid particles are exist which are not suitable for precipitation because the size of the particle are very small. The particles are visible in microscope which is remaining in fixed without any agitation.

All these characteristics are found in milk and that is why milk is a suspension.