Page 2 - 1.Mindmap-Impurities of Water

SEDIMENTATION: The process by which an insoluble impurity such as sand is

separated from water by letting it settle, is called sedimentation.

DECANTATION: The process by which the clear water collected by the process
of sedimentation, is poured into another container is called decantation.

CHLORINATION: There are certain germs that cause water borne diseases.
These germs are killed by the process of chlorination in which chlorine gas or
tablet is added to water sources.