Please advise me on Writing task 1

The charts provide an explanation for the primary reason why farming land worsen and make a classification of causes of land degeneration by area during the 1900s respectively.

A glance at the graphs reveals that over-grazing and deforestation were two main causes of land escalation and Europe was the place which had the most percentage unproductive land.

Now, turning to the details, the causes of worldwide land degradation was made up of three main reasons which were over-grazing, over-cultivation, and deforestation. Interestingly, these reasons had the same proportion, at 35%, 28%, and 30% respectively with over-grazing, over-cultivation, and logging.

The table data clearly shows that completely opposite of Europe, North America had the smallest proportion of degraded land, at 23% and 5% in order. Oceania was the place which had the medium percentage of land degeneration, at 13%. In addition, Oceania was the only place which had worldwide land degradation, not because of over-cultivation. The main cause of this area was over-grazing, at over 11%.