Africa's Environmental Issues

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Across
  1. 2. Long periods of low precipitation
  2. 4. Land becomes desert due to Drought, deforestation or bad farming
  3. 7. Process of destroying vegetation by placing too many animals on the same land for too long a period of time
  4. 8. The practice of planting a variety of crops in a specific order to gain the most productive crop yields and to conserve soil and water quality
  5. 9. Arid region that receives less than 10 inches of precipitation annually
  6. 11. Soil washes away into streams, heavy competition among plants
  7. 12. The process of losing soil, beach, etc. due to wind, rain and storm
Down
  1. 1. The contamination of fresh water
  2. 3. The act of cleaning area with trees
  3. 5. The method of bringing water to dry areas.
  4. 6. The place were cultivated land ends and the desert begins
  5. 10. People who travel from place to place with their possessions and their herding animals