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

The pie chart given provides information about the percentages of causes that make

land

barren. The table illustrates how three different areas were affected by these causes in the 1990s.

Overall

,

it is clear that

over–grazing

Correct your spelling

overgrazing

show examples

is the biggest reason for being infertile,

while

in Europe

land

degradation is totally higher than other degradation rates. Moving to a detailed analysis, the figure for over-grazing accounted for almost one–third of the total, with over-cultivation representing 28%. In terms of the indicator of

deforestation

and others,

deforestation

indicated 30%,

while

others were just under one-tenth. Turning to the table, in North America, the proportion of

land

degraded was the lowest at 5%, with

deforestation

, over-cultivation, and over-grazing constituting 0.2%, 3.3%, and 1.5% respectively. In comparison, in Europe, the most considerable share of

land

was degraded at just over one-fifth, and the corresponding figures for Europe were responsible for 9.8%, 7.7%, and 5.5% of the total in turn. With regard to the rates for Oceania, that for

deforestation

was 1.7%, with over-grazing forming 11.3% of all,

totaling

Change the spelling

totalling

show examples

13%.

However

, there is no

land

degradation

that is

caused by

over-cutivation

Correct your spelling

over-cultivation

.