The pie chart below shows the main reasons why agricultural land becomes less productive. The table shows how these causes affected three regions of world during the 1990s. summarise the information by electing and reporting the main features, and make comparisons where relevant

The pie chart provides information on

unproductive

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the unproductive

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agricultural

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area

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areas

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and the table depicts the consequences for the three areas of the world through the 1990s. Generally, overgrazing was the biggest cause of

area

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devaluing (35%) and Oceania was the largest continent degraded by overgrazing (11.3%,

while

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unidentified causes were the smallest

issue

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that caused farmland degradation (7%) and North America was the small-scale field that degraded (5%).

Firstly

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, in terms of causes of

area

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degradation, overgrazing was the biggest

issue

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that caused the devaluing of 35% of the

area

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, followed by deforestation which takes 30 % and over-cultivation was the third

issue

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that caused 28% and the other

issue

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was the smaller cause which takes 7%.

Secondly

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, concerning the result of

area

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degradation, the table shows that Europe is the biggest

area

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affected which is 23 %, followed by Oceania which takes 13 %, and the

last

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one affected at only 5 % in North America