Question 4
State three environmental water pollution [3 marks]
Observation
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This question was attempted by many candidates and their performance was good. They did well in it.
The expected answer is as follows:ENVIRONMENTAL WATER POLLUTANTS
- refuse from homes and industries / debris
- sewage from homes and industries
- agricultural wastes/fertilizer /herbicides/insecticides
- oil leakages
- use of chemicals for fishing in our water bodies
- chemical wastes from industry/industrial wastes
- hot water from industries/power stations
- pathogens / germs / bacteria