- Task Achievement
- Band 7.0
- Coherence and Cohesion
- Band 7.0
- Lexical Resource
- Band 6.5
- Grammatical Range and Accuracy
- Band 6.0
The pie chart depicts the use of different sources of energy in the USA in two decades – 1980s and 1990s. An overview of the diagram shows that the major source of energy in the USA was oil in both decades, and the use of nuclear power as a source of energy doubled in just ten years.