The pie chart and table could noticed that what reasons are pivotal and essential for demolishing lands.
Overall, as can be seen from the the most effective causes of land degradation is over-grazing by worldwide and it is clear from the table that Europe is a region which have the most impression on the land degradation.
Getting back to details, the first and more importantly reason for demolishing is over-grazing by some domestic animals which its percentage is 35% after that the second reason is deforestation which its percentage is similar to over-grazing approximately (30%),the third reason is over-cultivation that is roughly a quarter and the last one is some other reasons that is included a tiny fraction.
As is illustrated by the table, the most percentage of over-grazing which was the main reason on the pie chart above is allocated to Oceania which is included some islands such as Australia and New Zealand; moreover, the enormous percentage of deforestation that was the second reason on the pie chart is relevant to Europe region.