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 given pie chart presented the causes of the decreasing productivity of agricultural land. Meanwhile, the table gives information on the regions, in which

this

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problem occurred.

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, I will summarize the main elements of both figures. Based on the pie chart, the main reason for the falling productivity was devoted to over-grazing which represented 35% of the

overall

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cause followed by deforestation which covered 30%. The third cause resulted from over-cultivation which represented 28%. Other causes occupied the least percentage. Regarding the degradation based on region, it can be seen from the table that Europe has suffered the most compared to the other regions reaching 23% where over-cultivation appears to outrun the other causes to about 9.8%. Meanwhile, Oceania's degradation was caused mainly by over-grazing which occupied 11.3% of the total 13 percentage and the rest was caused by deforestation. North America

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suffered the least by 5% only caused mostly by over-cultivation followed by 1.5% from over-grazing.