(a) Causes of air pollution
(i) Industrial wastes and fumes
(ii) Fumes from exhaust of vehicles and aero planes
(iii) Fumes from minerals works
(iv) Emission of smoke to the atmosphere
(b) Effects of Air Pollution
(i) It may increase or decrease temperature
(ii) Destruction of the ozone layer
(iii) It causes health hazards, e.g lung diseases
(iv) It may cause accident as a result of poor visibility
(c) Ways of controlling air pollution
(i) Education on waste disposal
(ii) Monitoring of air pollution
(iii) Improved technology, e.g waste recycling
(iv) Government legislation on air pollution