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

, the table chart below gives data on how

causes

of

land

degradation

by regions of the world during the 1990s.

Overall

,it can be seen how three

causes

of

land

degradation

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

causes

of

land

degradation

by region namely, North America, Europe and Oceania.

Firstly

, the highest percentage of

causes

of

land

degradation

in many nations was over-grazing at 35 per

cent

. Followed by deforestation was 30 per

cent

and over-cultivation was 28 per

cent

respectively. And the lowest was other at 7 %.

Secondly

, the table shows that Europe was the highest 23 per

cent

of

land

degradation

.

In contrast

, the lowest region in which

land

degradation

was North America.

Moreover

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

cent

.