The pie chart illustrates the percentage of the causing of unproductive land for agricultural due to worldwide land degradation which divided into four categories, and Its effects on three regions in 1990 presented by th
The former pie chart provides us with information about the major reasons for agricultural degradation in the 1990s. And the latter table divides these causes into three different areas according to their percentage of b
The pie chart shows us the three main causes of worldwide land degradation.And the table shows us the proportion of three reasons of land degredation by three rigion in the 1990s.