Tusomesasa.

Describe causes and methods of controlling water pollution. (20mks)

Suggested resposponses

Water pollution is addition of substances into water bodies that may cause harm to organisms and may be disruptive to aquatic ecosystem;

The cause and control of water pollution include:

Industrial effluents that contain toxic chemicals such as heavy metals eg mercury, lead, Zinc, Copper, Chromium; hot effluent which pollutes water and...