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

The pie chart

give

Correct subject-verb agreement

gives

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information about the main cause why

agricultural

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agriculture

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has declined in

producing

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production

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. The table chart illustrates how these causes had made an impact on three parts of the world in the 1990s.

Overall

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, we can see that overgrazing had the highest percentage of damage,

while

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the other sources of land degradation had the lowest.

Also

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,

it is clear that

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Europe had been affected the most among the regions shown.

According to

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the data given,

reasons

Correct article usage

the reasons

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of

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for

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land degradation around the world are four. Over-grazing had affected 35% of the

wolrd

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world

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whereas

Punctuation problem

, whereas

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deforestation impacted 30%. As for over-cultivation and other causes, they had 28% and 7%, respectively.

Furthermore

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, North America was the least affected by land degradation; all of the causes' effects did not surpass 5%. As for Europe, they suffered from deforestation the most, which had a 9.8% impact,

while

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over-cultivation was 7.7% and over-grazing was 5.5%. As for Oceania, they did not suffer from over-cultivation in that period;

however

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, they experienced over-grazing the most, which had 11.3,

whereas

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deforestation was 1.7.