The pie chart shows the main reason why agricultural land becomes less productive.

The pic chart below shows information about the main reasons agriculture becomes less productive.

In addition

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, the table chart below gives data on how

causes

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of

land

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degradation

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by regions of the world during the 1990s.

Overall

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,it can be seen how three

causes

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of

land

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degradation

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around the world are deforestation, over-cultivation ,over-grazing , and others. And the table provides

causes

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of

land

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degradation

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by region namely, North America, Europe and Oceania.

Firstly

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, the highest percentage of

causes

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of

land

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degradation

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in many nations was over-grazing at 35 per

cent

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. Followed by deforestation was 30 per

cent

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and over-cultivation was 28 per

cent

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respectively. And the lowest was other at 7 %.

Secondly

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, the table shows that Europe was the highest 23 per

cent

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of

land

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degradation

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.

In contrast

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, the lowest region in which

land

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degradation

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was North America.

Moreover

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, Oceania was O % in over-grazing. In Europe was 23 per

cent

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.