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.

Task Achievement

Band 6.0

Coherence and Cohesion

Band 6.0

Lexical Resource

Band 6.0

Grammatical Range and Accuracy

Band 6.0

The pie chart shows the main reasons why agricultural land becomes less productive, while the table shows how these causes affected three regions of the world during the 1990s. Overall, The main reasons for worldwide land degradation consisted of over-grazing, over-cultivation, deforestation and so on.