1. Clean water is essential for our life. Any water body contamination will create problems, and either pollution or contamination will affect aquatic life. One of the phenomena of pollution is called eutrophication.

(a) Give the difference between water pollution and water contamination. You should include an example for both. (4 marks)

(b) Describe eutrophication that occurs in the water body with the aid of a diagram. (6 marks)