Multiple choice

The rate of sedimentation is increased by adding ____ to the water.

  1. Salt

  2. Sugar

  3. Alum

  4. Soap

Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Explanation: Sedimentation is the tendency for particles in suspension to settle out of the fluid in which they are entrained, and come to rest against a barrier. This is due to their motion through the fluid in response to the forces acting on them: these forces can be due to gravity, centrifugal acceleration or electromagnetism.