Pie Chart

Band 8+: The pie charts below show the distribution of energy sources used for electricity generation in Chile and Norway in 2005 and 2023. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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Image for topic: The pie charts below show the distribution of energy sources used for electricity generation in Chile and Norway in 2005 and 2023. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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The image displays two pie charts titled 'Electricity generation by energy source (Percentage, 2005-2023)'. In the 2005 chart, the distribution is Hydroelectric 35%, Natural Gas 40%, Coal 20%, and Wind and Solar 5%. In the 2023 chart, the distribution is Hydroelectric 25%, Natural Gas 20%, Coal 15%, and Wind and Solar 40%.

Given the complexity of the image, the above description may not be entirely accurate.

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The pie charts illustrate the share of power resources used for the creation of electric power in Chile and Norway in two distinct years:2005 and 2023.

Overall, in 2005, natural gas led the categories, while renewable resources such as wind and solar accounted for the lowest percentages. However, by 2023, the renewable resources overtook all other categories to become the largest energy source.

At the beginning of the period, natural gas accounted for the plurality of electricity generation, whereas coal comprised 20%, followed by hydroelectric power, which made up 35% of the total energy supply. Wind and solar got 5%, making them the lowest category.

After eighteen years, in 2023 all categories experienced significant changes. Wind and solar rose sharply and became the dominant category at 40%. Furthermore, hydroelectric power decreased by ten percentage points and took second place, exceeding natural gas and coal. Coal and natural gas made up 15% and 20% respectively.

Word Count: 154

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Overall Band Score

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Vocabulary Complexity:
C2 - Complex
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Grammar Mistakes: N/A

Vocabulary Repetition:

power: 4

natural: 4

resources: 3

categories: 3

solar: 3

Try using synonyms for the above words

Task Response

The report effectively addresses the task by providing a clear overview and highlighting key trends. It accurately describes the main changes, such as the rise of wind and solar and the decline of other sources. However, there are minor omissions, such as not explicitly comparing the two countries (Chile and Norway) as the task requires. The report focuses on the overall data without distinguishing between the countries, which is a slight lapse. To improve, ensure that comparisons between the countries are made where relevant, and consider mentioning specific values for each country to enhance clarity.

Coherence & Cohesion

The report is well-organized with a clear overall structure: introduction, overview, and detailed paragraphs for each year. The use of cohesive devices such as 'Overall', 'At the beginning of the period', and 'After eighteen years' helps the reader follow the progression. However, there are minor lapses in cohesion, such as the abrupt transition from the overview to the detailed description of 2005, and the final sentence could be more smoothly linked to the preceding one. Overall, the message is easy to follow and paragraphing is managed well.

Lexical Resource

The report demonstrates a good range of vocabulary with appropriate terms like 'distribution', 'renewable resources', 'accounted for', 'comprised', 'dominant category', and 'rose sharply'. The phrasing is generally natural and precise. However, there is some repetition (e.g., 'energy source' and 'electricity generation' are used multiple times) and a few less sophisticated choices such as 'got 5%' which could be replaced with 'accounted for 5%'. Overall, the lexical resource is strong and shows flexibility, but there is room for more variety and sophistication.

Grammatical Range & Accuracy

The report uses a variety of sentence structures, including complex sentences and appropriate use of passive voice. Grammar and punctuation are largely accurate, with only minor issues such as a missing space after the colon in 'years:2005' and a slight awkwardness in 'the renewable resources overtook all other categories' (the definite article is unnecessary). The range of structures is good, and errors are infrequent and do not impede understanding. Overall, the grammatical control is strong, but a few minor corrections would enhance accuracy.

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Band 8+: The pie charts below show the distribution of energy sources used for electricity generation in Chile and Norway in 2005 and 2023. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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Task Response

Coherence & Cohesion

Lexical Resource

Grammatical Range & Accuracy

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The pie charts below show the distribution of energy sources used for electricity generation in Chile and Norway in 2005 and 2023. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

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