Band 7+: The pie chart below 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. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The pie chart depicts the major reasons why agricultural land has become less productive and its effects on a major part of the world. In an overview, over-grazing by cows can be seen as a major reason for degradation, and the most affected region is Europe.

After over-grazing, deforestation takes the second major percentage, leading to land degradation, which is 30%. Compared to over-grazing, it is usually 5% less. Also, the over-cultivation of different crops and insecticides has also become a noticeable cause of land being infertile. The remaining percentage is 7%, which may include the building of unnecessary factories or unplanned urban areas.

Europe, which is the most affected, usually comprises causes like deforestation (9.8%), over-cultivation (7.7%), overgrazing (5.5%), and so on. On the other hand, North America and Oceania are comparatively less affected than Europe. The total land degraded in North America is 5%, whereas Oceania, which is a large group of islands in the South Pacific, including Australia and New Zealand, is approximately 13%.