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These are the main causes of water pollution Pollutant Source Household wastes Rubbish Faeces Agricultural wastes Insecticides Chemicals from fertilizers Industrial wastes Detergent Acids and alkalis Asbestos Radioactive wastes Oil Factories processing crude oil Oil spills, delibrate dumping of oil in oceans Water polluted with microorganisms (from houshold wastes), may carry viruses and diseases if consumed, e.g. Typhoid, Cholera Poisonous dissolved substances can endanger humans and animals. Dumping of fertilizers result in the overgrowth of algae, preventing sunlight from reaching the river bed and restricting oxygen. Aquatic plants are unable to make food and this will in turn affect herbivorous aquatic animals and then the carnivorous ones. Oil spills kill much aquatic life, cutting off oxygen flow. Fishermen and local are affected too. How can we handle water pollution? This page hosted by Get your own Free Home Page