The pie chart below 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. Summarise the information by selecting and reporting the main features, and make comparisons where relevant. Write 150 to 170 words.

The pie chart delineates the primary factors contributing to the diminished productivity of agricultural

land

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on a global scale,

while

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the table presents the impact of these factors on North

America

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,

Europe

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, and

Oceania

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during the 1990s. Globally, over-grazing emerges as the predominant cause of

land

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degradation

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, accounting for 35% of the productivity loss. Deforestation and

over-cultivation

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are

also

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significant contributors, responsible for 30% and 28% respectively. Other reasons comprise a smaller fraction of 7%. Regionally, the extent of

land

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degradation

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varies, with

Europe

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experiencing the most severe impact

at

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with

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23% of its

land

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affected. Over-grazing is the leading cause in

Oceania

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, affecting 11.3% of the

land

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, despite

this

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region having no issues with

over-cultivation

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.

In contrast

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, North

America

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reports the lowest

overall

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degradation

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at 5%, with

over-cultivation

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as its main concern at 3.3%. Deforestation has had a minimal effect on North

America

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and

Oceania

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, with 0.2% and 1.7% respectively, but is a significant factor in

Europe

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at 9.8%. These data indicate that

while

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certain causes of

land

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degradation

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like over-grazing and

over-cultivation

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are common across different regions, their impact can vary dramatically.

Europe

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's high deforestation rate contrasts with the negligible rates in North

America

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and

Oceania

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, highlighting regional differences in agricultural practices and environmental management.