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 5.5

Lexical Resource

Band 5.5

Grammatical Range and Accuracy

Band 5.5

The given picture contains two charts, one pie chart and another table chart. As is observed from the pie chart, the main reason for less productivity is overgrazing of animals which constitutes 35%.