Multiple Graphs

Band 9: The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. Write a report for a university lecturer describing the changes which occured

See all user-written answers on this topic

Image for topic: The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. Write a report for a university lecturer describing the changes which occured

Our system will evaluate the answer based on this AI-generated description.

The image contains two pie charts comparing energy sources in the USA for 1980 and 1990. In 1980: Oil 42%, Natural Gas 26%, Coal 22%, Hydroelectric Power 5%, Nuclear Power 5%. In 1990: Oil 33%, Natural Gas 25%, Coal 27%, Hydroelectric Power 5%, Nuclear Power 10%.

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

Skyrocket your IELTS band score by 1-2 points in under a month with our premium plan!

Check it out

Note: Both the topic and the answer were created by one of our users.

The two pie charts compare the percentages of five different energy sources: oil, natural gas, coal, hydroelectric power and nuclear power in the United States in the years 1980 and 1990.

Overall, it is clear that oil was the most dominant energy source in both decades, although its share declined significantly. By contrast, nuclear power grew noticeably, while hydroelectric power remained relatively stable over the period.

In 1980, oil accounted for the largest share of energy at 42%. However, it experienced a noticeable downward trend, falling to approximately 33% by 1990. Meanwhile, coal saw a remarkable increase, rising from 22% to 27%, whereas natural gas decreased slightly from 26% to 25% over the same period.

In contrast, nuclear power experienced a remarkable upward trend from 5% to 10% in the years 1980 and 1990. On the other hand, hydroelectric power remained stable at approximately 5% at the end over the period.

Word Count: 151

Check Your Answer On This Topic?

Check My Answer

Generate A Band-9 Sample Answer?

Generate A Sample

Overall Band Score

(+/- 0.5)

Vocabulary Complexity:
C1 - Intricate
Strive to incorporate even richer and more precise language.

Grammar Mistakes: N/A

Vocabulary Repetition:

power: 6

energy: 3

hydroelectric: 3

nuclear: 3

Try using synonyms for the above words

Task Response

The report fully satisfies the requirements of the task. It provides a clear overview of the main trends, effectively compares the data between the two years, and organizes information logically. The use of varied vocabulary to describe changes (e.g., 'declined significantly', 'remarkable increase', 'remained relatively stable') is appropriate and enhances the quality of the report.

Coherence & Cohesion

The report is exceptionally well-organized. The progression from the introduction to the overview and then to the specific details is logical and effortless to follow. Cohesive devices such as 'Overall', 'By contrast', 'Meanwhile', and 'In contrast' are used naturally to guide the reader through the comparisons without being repetitive or intrusive.

Lexical Resource

The vocabulary used is sophisticated and highly appropriate for an academic report. Terms like 'dominant energy source', 'declined significantly', 'accounted for', and 'upward trend' demonstrate a high level of lexical control. The writer successfully uses a variety of verbs and adjectives to describe changes in data accurately and naturally.

Grammatical Range & Accuracy

The grammatical structures are diverse and used with full flexibility. The report employs a mix of complex and simple sentence structures effectively. Punctuation is accurate throughout, and there are no discernible errors in tense or subject-verb agreement, ensuring a smooth reading experience.

Answers On The Same Topic:

The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. Write a report for a university lecturer describing the changes which occured

The two pie graphs compare the proportion of main energy sources in the USA in 1980 and 1990. From an overall perspective, oil represents the largest proportion in both graphs, followed by natural gas and coal. In 1980, oil contributed to 42% of the total energy, while natural gas, the second biggest contributor, was at […]

Band 7+

The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. Write a report for a university lecturer describing the changes which occured

The pie charts contrasts important types of energy consumption within USA between 1980 and 1990. Various forms of energy available are oil, natural gas, coal, hydroelectric power and nuclear power. Overall, the charts illustrates the fact that oil has been the primary contributor to energy resource in both 1980s and 1990s. Though oil is the […]

Band 6+

The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. Write a report for a university lecturer describing the changes which occured

The two pie charts illustrate the proportion of energy used in the USA between the 1980s and the 1990s. Overall, it is clear that there was an increase in the proportion of energy from coal and nuclear power while the opposite was true for oil. However, the figures for natural gas and hydroelectric power remained […]

Band 6+

The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. Write a report for a university lecturer describing the changes which occured

The pie charts illustrate how proportions of primary energy sources of USA changed between 1980 and 1990. Overall, in both years, oil, natural gas and coal made up almost all of the energy produced. The shares of all sources of energy experienced changes to varying degrees between the 2 years, except the proportion of hydroelectric […]

Band 6+

See All

The pie charts below show the proportions of residential water usage for different purposes in 1980 and 2008. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The given pie charts provide information about the proportions of residential water usage for different purposes, which including kitchen, garden, bathroom, toilet, and washing clothes in 1980 to 2008, over a period of 28 years. Units are measured by percentage. Overall, it can be seen that the kitchen had the highest percentage of water use, […]

Band 5+

The charts below show one government's spending on culture and education in 1995 and 2005 and the number of people participating in Arts events in the same years.

The charts provided represents how a government allocated its arts budget in 1995 and 2005 and show the number of people participating in arts events during the same years. Overall, music received the largest share of funding in both years, although its proportion fell slightly by 2005. Theatre, on the other hand, gained a much […]

Band 7+

The pie charts below give information about the main reasons why students chose a particular university in 1999 and 2019. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The given pie charts compared the primary motives why students selected university from 1999 to 2019. Overall, analyzing the data makes it clear that the highest number of students chosen their university according to academic reputation. In contrast, other reason was given least priority. According to the provided data, in 1999, academic reputaion was the […]

Band 4+

The line graphs below illustrate population trends globally by percentage, from 1950 with a forecast to 2040. Summarize the information by selecting and report the main features and make comparisons where relevant.

The graphs depict global population proportions by region and age group, between 1950 and projected up to 2040. Generally, in the graph for area, while the rural area’s figure witnessed a noticeable downward trend, the percentage for urban area underwent a gradual growth. On the other hand, age group’s graph recorded an significant decline in […]

Band 7+

The chart gives information about the proportion os students choosing different science subjects in a university in 1992 and 2012

The bar graphs compare the proportion of students in a university regarding their choice of subjects and gender in 1992 and 2012. Overall, although the percentage of female students increased over 20-year period, the share of male students was higher throughout the period. While the proportion of students choosing biology experienced a noticeable decrease, the […]

Band 8+

See All

Check Your Answer On This Topic?

Generate A Band-9 Sample Answer?

Overall Band Score

Task Response

Coherence & Cohesion

Lexical Resource

Grammatical Range & Accuracy

Answers On The Same Topic:

Other Topics:

Plans & Pricing

Free

Premium