Theory question 307
Environmental Hazards and Conservation(a) What are environmental hazards? (b) List three examples of environmental hazards. (c) Explain five ways of preventing desert encroachment.
Show the model answer
Model answer
(a) Natural or man-made events that cause serious danger to life, property and the environment.
(b) Floods; drought; desertification; soil erosion; earthquakes; volcanic eruptions; landslides; pollution; bush fires; storms.
(c) Afforestation and shelter belts; control of overgrazing; control of bush burning; reduced cutting of trees for fuel, using alternative energy; irrigation; sand-dune fixation; public education; laws against deforestation; proper farming methods (fallowing, mulching); international cooperation (Great Green Wall).
Explanation
Explain how each method stops the desert advancing.