Theory question 207
Environmental Hazards and ConservationDiscuss any four ways in which man has interfered with his natural environment.
Show the model answer
Model answer
Any four, each explained: deforestation for farming, lumbering and fuel (soil erosion, loss of wildlife); farming and overgrazing (soil exhaustion, desertification); mining and quarrying (pits, spoil heaps, pollution, e.g. Jos tin fields, oil spills); urbanisation and building (loss of land, flooding, heat); industry and vehicles (air, water and land pollution, gas flaring); dams and irrigation (change river regimes, flood land); positive interference – afforestation, land reclamation, irrigation and fertilisers
Explanation
Explain the effect of each human activity on the environment.