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.

The pie chart illustrates the reasons for reducing agricultural production and the table provides information about land degradation in three countries in the year 1990.

Overall

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, most of the farming was degraded

due to

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over-grazing for farm animals and it affected the highest percentage of land in Europe over the year.

To begin

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, the given pie shows that the proportion of farmland for over-grazing at 35% which was a great amount compared to other parts followed by deforestation ruined for 30%, which was holding the second place in the list.

In addition

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, the cultivation of grass increased to 28% and others were using the farms at 7%. When looking at the table, provides clear data about the percentage of exhausted farmland in those three countries. Europe destroyed their farming at 23%, followed by Oceania ruined for 13% and North America utilized 5% which was the lowest percentage of degraded agricultural surfaces.