- Task Achievement
- Band 7.0
- Coherence and Cohesion
- Band 7.0
- Lexical Resource
- Band 7.0
- Grammatical Range and Accuracy
- Band 6.5
The given pie charts show data on the main energy sources in the United States of America in two decades. As is presented in the pie charts, oil was the main energy source for the USA both in the 80s and 90s but the use of oil and coal had reduced and their places as energy sources were somewhat replaced by the use of nuclear power in the USA.