The pie chart shows the main reasons why agricultural land becomes less productive. The table shows how these causes affected three regions of the world during the 1990s.

The pie chart compares the number of over-grazing causes of globally land becomes less productive in the 1990s. and The table chart compares the number of deforestation affected by three regions of land degradation im Europe over the same period. It is clear that the highest number of over-grazing and deforestation caused from worldwide agricultural land degradation in 1990s. meanwhile, the highest number of over-grazing and deforestation affected between Europe and oceanic a in the years 1990s. In trams of pie chart, in 1990s land degradation the over-grazing at 35%, while the figure for deforestation was 30%. and then over-cultivation and other causes of worldwide land degradation at 28% to 7%. On the other hand, the worst affected area was Europe at 23% degraded land in 1990s, 9. 8% was due to deforestation, 7. 7% was due to over-cultivation and and about 5. 5% was due to over-grazing. The second worst affected area was North America, with around 5%. And the major cause here was over-cultivation 3. 3%.