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.

The pie chart provides data on the reasons why the

land

suitable for agriculture becomes non-productive

while

the table depicts the effects of

the

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certain

causes

on particular

hree

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three

parts of the globe in the year 1990.

Overall

, over-grazing is the most renowned cause behind the worldwide

land

degradation

process followed by deforestation, over-cultivation and other miscellaneous

causes

while

the European region was the most sufferer

by

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all of the

causes

during 1990 with a certain amount of degraded

land

.

Due to

the excessive population number, more farmlands are needed and more animals are needed to fed.

That is

why, grazing is, an alarming issue and the chart is

the

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proof that the number is 35%, followed by

land

degradation

caused by deforestation (30%)

whereas

over-cultivation

causes

28% of the total loss of

lands

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land

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across the world.

However

,

due to

heavy industrialization, Europe was the table topper of the others in the table where

this

region had 23% of their total

land

degraded in 1990, in which deforestation had the largest share with 9.8%.

On the other hand

, North America had less degraded

land

in that time of 1990 with 5%

degradation

of total

land

as they put their full effort into reserving forestlands.

Furthermore

,

due to

heavy

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cattle population, over-grazing had been

the

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major problem in Oceania where 11.3% of

total

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the total

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13%

degradation

happened

by

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this

particular phenomenon only in 1990.