The given bar graph explain the main causes(human activitis) behind the land damage in four different continents of the world. There are all parameters of land damage in million hactares. There are main three reasons such as Tree-cutting, Breeding, and Farming.
First reason is Tree-cutting which is major issue in Asian countries for land damage. There are almost 450 million hactares land areas are affected by Tree-cutting. While, least affected areas are Australia and Europ by Tree-cutting and that is around 100 million hactares.
Another cause is Breeding and most affected lands by this cause is African region and that is nearly 500 million hactares and minimal affected reagion is European continent. And last but not least reason is Farming. Slightly above the 400 million hactares lands are affected by farming in Asian region. Where as other regions have less damage in compare to Asia and Africa. Merely less than 100 million hactares land are damaged in Australia and Europ.
Overall, Breeding is vital factor in damage the land area in all four regions. While Farming is least land damaging cause except Asia. There is another cause is Tree-cutting that is also neck to neck in Africa and Asia for land damage.