The pie chart below shows the main reasons why agricultural land becomes less productive. The table shows how these causes affected these regions of the world the 1990s

The given pie chart depicts the major causes why agricultural

land

grows unproductive, and the given table illustrates how these reasons influenced particular regions in the world namely North America, Europe, and Oceania throughout the 1990s.

Overall

, over-grazing was the most contributor to

land

degradation contributing 35,

while

other reasons were the least by giving 7% of global unproductive

land

. Meanwhile, Oceania was the highest percentage of

land

degraded by over-grazing which was 11,3% in 13% in total globally. Next North America was the lowest percentage of

land

degraded for three main causes. Looking in detail,

it is clear that

even though the Deforestation percentage was lower than over-grazing, it was the main cause affected in Europe as the highest region got a total

land

degraded worldwide. Compared with Oceania, which contributed only 1,7% to deforestation, was impacted by over-grazing 11,3% as the biggest cause. Other than that, North America as the least area which was influenced by three reasons agricultural

land

becomes unproductive was dominated by over-cultivating