Ouest (1) Deterioration (1) Nineteen eighties (1) Nineteen seventies (1) Biodiversity (1) Wrestling (1) Worms (1) Wood (1) Twentieth century (1) Soil-binding plants (1) Rain and rainfall (1) Pressure (1) Livestock (1) Growth factors (1) Foreign exchange (1) Force and energy (1) Droughts (1) Domestic animals (1) Desertification (1) Deforestation (1) Day (1) Cities and towns--Growth (1) Causation (1) Building (1) Art (1) Addition (1) 20th century (1) Yields (1) History--20th century (1) Rates (1)