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Pie Chart

Band 7+: The given graph shows the main sources of energy for USA in 1980 and 1990

Image for topic: The given graph shows the main sources of energy for USA in 1980 and 1990
Our system will evaluate the answer based on this AI-generated description.
The image shows two pie charts displaying energy sources for the USA in 1980 and 1990. In 1980, oil accounts for 42%, natural gas 26%, coal 22%, hydroelectric power 5%, and nuclear power 5%. In 1990, oil represents 33%, natural gas 27%, coal 25%, hydroelectric power 5%, and nuclear power 10%.
Given the complexity of the image, the above description may not be entirely accurate.
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Note: Both the topic and the answer were created by one of our users.

The pie chart compares the percentages of five different major sources of energy for the USA between 1980 and 1990.

It is clear that the highest percentage of energy was produced from oil in 1980 and 1990. By contrast, the amount of energy produced from hydroelectric power in the USA was the lowest in the given years.

On the one hand, in 1980, 42% of energy was produced from oil, and it remained the highest percentage of energy sources for the USA at 33% in 1990. Additionally, there was an increase in the percentage of energy produced from 22% to 27% in the years 1980 and 1990. Moreover, the proportion of energy production sources increased from 5% in 1980 to 10% in 1990, a rise of 5% over the period of 10 years.

On the other hand, the USA saw a slight decrease of 1% in the percentage of energy produced from natural gas, from 26% to 25% between 1980 and 1990. However, during the ten-year period, 5% of energy was produced from hydroelectric power in 1980, and it stayed constant and lowest in comparison with other sources in 1990.

Word Count: 190

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Overall Band Score

7
(+/- 0.5)
Vocabulary Complexity:
B1 - Intermediate
Using more sophisticated words could be beneficial.
Grammar Mistakes: N/A
Vocabulary Repetition:
energy: 9
produced: 6
sources: 4
percentage: 4
Try using synonyms for the above words

Task Response

8
The report addresses the task appropriately by comparing the percentages of energy sources for the USA in 1980 and 1990. However, there are some minor inaccuracies in the data mentioned.

Coherence & Cohesion

6.5
The report is generally coherent and cohesive, with a clear overall structure. However, there are some issues with paragraphing and the flow of ideas in certain parts.

Lexical Resource

6.5
There is a good range of vocabulary used, and some attempt at less common vocabulary. However, there are instances of repetition and some inaccuracies in word choice.

Grammatical Range & Accuracy

7.5
A wide range of grammatical structures is attempted, and the majority of the sentences are grammatically correct. Some errors in sentence structure and tense consistency are present.

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