The two graphs show the main sources of energy in the USA in the 1980s and the 1990s.
The pie charts illustrate the USA’s main energy sources in 1980 and 1990.
Overall, the usage of nuclear power and coal increased over the decade, while figure for that of oil and natural gas exhibited the opposite trend. In addition, the figure for hydroelectric power remained the same over the years.
Interest in the usage of Oil – the biggest energy source in both given dates – decreased slightly over the 10 years, from 42% to 32%. Figures for natural gas, however, faced only a subtle change of 1% from 26% in 1980 to 25% in 1990.
The usage of nuclear power and coal in terms of energy source increased over the years. The former saw a doublefold increase from from 5% in 1980 to 10% in 1990. Coal industry met an increase of 5%, same increase as nuclear energy did, over the period of 10 years. The usage of hydroelectricity maintained the same rate.
The essay is logically organized with clear progression. However, some sentences could be better connected.
Suggestions
- Use more linking words to enhance flow.
- Ensure all comparisons are clearly stated.
- Avoid repetition of similar phrases.
The vocabulary is appropriate but could be more varied.
Good range of grammatical structures with minor errors.
The essay addresses the task effectively, covering all key points from the graphs.
Suggestions
- Ensure all data points are accurately represented.