A 2010 study on this process found that its velocity has a strong dependence on aspect-ratio for disk-shaped particles due to an alignment effect. When using a trick to speed up this process, a “yo-yo” effect is sometimes seen, by which it initially appears to occur in reverse, due to overshooting the equilibrium described by the Laplace-Perrin distribution law. A characteristic length scale of this process is given by thermal energy divided by gravitational acceleration and buoyant mass. Types of this process may be distinguished by whether or not (*) flocculation has occurred, and this process is faster after further agglomeration. This process occurs (-5[1])in rivers when the velocity decreases, reducing (-5[1])its ability to carry a load. (10[1])For 10 points, name this process by which particles in a colloidal suspension come to rest after settling under gravity. ■END■ (10[2])