Line Graph

Band 5+: The chart below shows the percentage distribution of energy sources used in a country from 1990 to 2020.

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Image for topic: The chart below shows the percentage distribution of energy sources used in a country from 1990 to 2020.

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The image depicts the distribution of energy sources from 1990 to 2020; in 1990, coal at 43%, natural gas at 25%, nuclear power at 20%, renewables at 12%; in 2000, coal at 45%, natural gas at 23%, nuclear power at 22%, renewables at 10%; in 2010, coal at 50%, natural gas at 23%, nuclear power at 19%, renewables at 8%; in 2020, coal at 42%, natural gas at 29%, nuclear power at 11%, renewables at 18%.

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

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The given line graph provides information about four different energy sources which was used in a country in a period of 30 years. The figures are given in percentages.

Overall, it can be observed that coal and natural gas remained their positions throurghout the period, while nuclear power and renewables are switched with each other’s positions.

Initially, coal accounted for 40 percentage, while renewables made up only 10. In the next 2 decades, coal and renewables experienced a steadily growth, reaching 45 and 12 percentages respectively.. At the end of the period, coal distribution gradually decreased to 42 percentage, whereas renewables surged to 20 percentage in 2020.

Conversely, natural gas started at 30 percentage, followed by nuclear power at 20 percentage. After 10 years, distribution of natural gas significantly decreased to 24 while nuclear power experienced a steadily decrease and stood at roughly 19 percentage. Between 2000 and 2020, nuclear power gradually decreased and represented 15 percentage at the end of the period. During the same period, distribution of natural gas experinced a fluctuation, reaching 16 percentage in 2010 and 12 percentage in 2020.

Word Count: 184

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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:

percentage: 9

period: 5

natural: 4

nuclear: 4

power: 4

renewables: 4

while: 3

distribution: 3

decreased: 3

Try using synonyms for the above words

Task Response

The report addresses the task but contains significant inaccuracies in data reporting that detract from the overall clarity and achievement of the task. While the structure is appropriate, the specific figures provided in the report often contradict the data provided in the visual description (e.g., the report claims natural gas ended at 12%, whereas the description states it reached 29%). Additionally, the overview contains an inaccurate generalization regarding nuclear power and renewables 'switching positions.' To improve, ensure that every data point mentioned is cross-checked against the visual information to maintain accuracy. Focus on describing trends more precisely; for instance, instead of stating sources 'switched positions,' describe whether they increased, decreased, or fluctuated. Finally, ensure that the relationship between different data points is logically presented to provide a cohesive overview of the trends.

Coherence & Cohesion

The report follows a logical structure with an introduction, overview, and body paragraphs. However, the progression of ideas is sometimes hindered by inaccuracies in how data is grouped and described. For instance, the overview claims nuclear power and renewables 'switched positions,' which is a significant oversimplification and not entirely accurate based on the data. To improve, ensure that your overview captures the most significant trends (e.g., the dominance of coal or the late surge in renewables) rather than making broad generalizations that may be factually misleading.

Lexical Resource

There is an attempt to use varied vocabulary such as 'accounted for,' 'surged,' and 'fluctuation.' However, there are frequent errors in word formation and usage, such as 'steadily growth' (should be 'steady growth') and 'steadily decrease' (should be 'steady decrease'). Additionally, the use of 'percentage' is often incorrect; it should be 'percent' when following a number (e.g., '40 percent' instead of '40 percentage'). Work on the distinction between adjectives and adverbs to ensure they modify nouns and verbs correctly.

Grammatical Range & Accuracy

The report uses a mix of simple and complex sentence structures, but grammatical errors are frequent and occasionally impede clarity. There are issues with subject-verb agreement (e.g., 'energy sources which was used') and tense consistency. Furthermore, there are several typographical errors (e.g., 'throurghout', 'experinced'). To improve, focus on proofreading for spelling and ensuring that relative clauses and verb tenses are used accurately to describe historical data.

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