The proportion of the energy produced from different sources in a country between 1985 and 2003.

IELTS Academic Writing Task 1 - Pie Chart

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IELTS Writing Task 1 Question

The charts below show the proportion of the energy produced from different sources in a country between 1985 and 2003. Summarize the information by selecting and reporting the main features, and make comparisons where relevant.

Common Questions for the Chart

1. Graph Type: Pie Charts

2. Title: Energy Production Sources from 1985 to 2003

3. What are the units of measurement?: Percentage

4. Who: The country depicted in the charts

5. What does the chart depict?: The proportion of energy produced from different sources over time

6. When: Data for the years 1985 and 2003

7. Where: Not specified, but it refers to a particular country

8. Topic: Trends in energy production sources over time

Comparison Showing and Trends Any change over time (such as an increase or a decrease) is a trend.

Comparison 1 : Major Energy Sources (1985)

Details:
In 1985, oil was the dominant energy source, accounting for 52% of production, followed by nuclear at 22%. Natural gas and coal made up 13% and 8%, respectively, while hydrogen and other renewable sources were minimal at 4% and 1%.

Comparison 2 : Changes by 2003

Details:

By 2003, the share of oil dropped to 39%, indicating a significant decline. Nuclear energy also decreased to 17%. Conversely, natural gas saw substantial growth, rising to 23%, while coal increased to 13%.

Comparison 3 : Stability and Growth in Other Sources

Details:

The proportion of energy produced from hydrogen remained stable at 4%, whereas energy from other renewable sources grew from 1% to 4%, indicating a slow but steady increase in the diversification of energy sources.

Sample Answer

The provided pie charts illustrate the proportions of energy generated from various sources in a specific country between 1985 and 2003.

In 1985, oil was the primary source of energy, constituting 52% of total production, followed by nuclear energy at 22%. Natural gas and coal contributed 13% and 8%, respectively, while hydrogen and other renewable sources were minimal, making up 4% and 1%.

By 2003, the reliance on oil had decreased significantly to 39%, while the share of nuclear energy also fell to 17%. In contrast, natural gas usage increased markedly to 23%, and coal production rose to 13%.

Interestingly, the share of energy produced from hydrogen remained constant at 4%, indicating stable usage, whereas the contribution from other renewable sources increased from 1% to 4%. This shift suggests a gradual diversification in energy production sources over the 18-year period.

Overall, oil continued to be the major energy source, while hydrogen and renewable sources accounted for the least production throughout the years observed.

Top 29 Vocabularies

Vocabulary	Meaning	Synonyms	Examples	Type
Proportion	A part, share, or number considered in relation to a whole	Ratio, Percentage	“The proportion of energy from natural gas increased.”	Noun
Dominant	Most important, powerful, or influential	Prevailing, primary	“Oil remained the dominant source of energy.”	Adjective
Declined	To decrease in quantity, quality, or strength	Diminished, decreased	“Nuclear energy declined from 22% to 17%.”	Verb
Substantial	Of considerable importance, size, or worth	Significant, considerable	“Natural gas saw substantial growth.”	Adjective
Diversification	The process of varying products or investments to reduce risk	Variation, assortment	“There was a gradual diversification in energy sources.”	Noun
Illustrate	To visually explain or represent	Depict, Represent	“The pie charts illustrate the proportions of energy sources.”	Verb
Generated	Produced or created	Created, Produced	“Energy generated from oil decreased significantly by 2003.”	Verb
Constitute	To make up or form a part of something	Comprise, Represent	“Oil constituted 52% of energy production in 1985.”	Verb
Relied	Depended on something for support or supply	Depended, Counted on	“By 2003, the reliance on oil had decreased significantly.”	Verb
Markedly	In a noticeable or significant way	Significantly, Clearly	“Natural gas usage increased markedly by 2003.”	Adverb
Contributed	Played a part in achieving something	Added, Provided	“Natural gas contributed 13% of energy in 1985.”	Verb
Minimal	Very small in amount or degree	Insignificant, Negligible	“Hydrogen and other renewable sources were minimal.”	Adjective
Indicating	Showing or suggesting something	Demonstrating, Signaling	“Stable hydrogen usage indicates a lack of change.”	Verb
Stable	Not changing or fluctuating	Steady, Unchanging	“Hydrogen usage remained stable at 4%.”	Adjective
Renewable	Capable of being replenished	Sustainable, Replenishable	“The contribution from renewable sources increased.”	Adjective
Diversified	Expanded into a variety of options	Varied, Broadened	“Energy sources became more diversified over time.”	Adjective/Verb
Shift	A change in direction or focus	Transition, Change	“This shift suggests a diversification in energy sources.”	Noun/Verb
Production	The process of creating or manufacturing something	Generation, Output	“Energy production from coal increased in 2003.”	Noun
Observed	Examined or noted as being significant	Noted, Recorded	“The years observed showed a decline in oil reliance.”	Verb
Indicate	To point out or show	Signal, Demonstrate	“The data indicates a gradual diversification in energy production.”	Verb
Reliance	Dependence on something or someone	Dependence, Need	“Reliance on oil dropped significantly by 2003.”	Noun
Gradual	Happening slowly over time	Progressive, Incremental	“There was a gradual increase in renewable energy usage.”	Adjective
Contribution	Something given or supplied to achieve a result	Addition, Input	“The contribution from renewable sources rose to 4%.”	Noun
Underscore	To emphasize or highlight	Highlight, Stress	“The charts underscore the scarcity of renewable energy sources.”	Verb
Primary	Of chief importance	Main, Principal	“Oil was the primary source of energy in 1985.”	Adjective
Contrast	A noticeable difference	Difference, Disparity	“The contrast between energy sources was significant.”	Noun/Verb
Increased	Became greater in number, size, or importance	Grew, Expanded	“The use of natural gas increased markedly.”	Verb
Decline	A gradual reduction in quality or quantity	Decrease, Drop	“Nuclear energy saw a decline over the years.”	Noun/Verb
Remained	Continued to exist in the same state	Persisted, Continued	“The share of hydrogen remained constant at 4%.”	Verb

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