The two graphs show the main sources of energy in the USA in 1980 and 1990. Write a report for a university lecturer describing the changes which occurred. Write at least 150 words.
The charts compare, in percentage terms, five fuel sources used to produce energy in the USA in 1980 and 1990.
Overall, oil was the main resource used for energy production in both years. There was relatively little change in the proportions of the other fuel sources used in 1980 and 1990.
In 1980, 42% of energy produced in the USA came from oil, but this then fell to 33% in 1990. The figures for natural gas, in contrast, remained almost stable at 26% of total energy production in 1980 and 25% in 1990. There was, however, a significant increase in the proportion of coal used as an energy source. From a figure of 22% in 1980, it then overtook natural gas in 1990, with 27%.
While the figure for hydroelectric power remained constant at 5% of the total in both years, the percentage of nuclear power used to produce energy rose by 5% from the 1980 figure, to reach 10% in 1990.
Transition Words or Phrases used:
but, however, if, so, then, while, in contrast
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 3.0 7.0 43% => More to be verbs wanted.
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 4.0 6.8 59% => More conjunction wanted.
Relative clauses : 0.0 3.15609756098 0% => OK
Pronoun: 2.0 5.60731707317 36% => OK
Preposition: 35.0 33.7804878049 104% => OK
Nominalization: 3.0 3.97073170732 76% => OK
Performance on vocabulary words:
No of characters: 728.0 965.302439024 75% => OK
No of words: 162.0 196.424390244 82% => More content wanted.
Chars per words: 4.49382716049 4.92477711251 91% => OK
Fourth root words length: 3.56762134501 3.73543355544 96% => OK
Word Length SD: 2.37033821995 2.65546596893 89% => OK
Unique words: 85.0 106.607317073 80% => More unique words wanted.
Unique words percentage: 0.524691358025 0.547539520022 96% => OK
syllable_count: 215.1 283.868780488 76% => OK
avg_syllables_per_word: 1.3 1.45097560976 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 1.53170731707 65% => OK
Article: 4.0 4.33902439024 92% => OK
Subordination: 1.0 1.07073170732 93% => OK
Conjunction: 1.0 0.482926829268 207% => Less conjunction wanted as sentence beginning.
Preposition: 6.0 3.36585365854 178% => OK
Performance on sentences:
How many sentences: 8.0 8.94146341463 89% => OK
Sentence length: 20.0 22.4926829268 89% => OK
Sentence length SD: 37.947331922 43.030603864 88% => OK
Chars per sentence: 91.0 112.824112599 81% => OK
Words per sentence: 20.25 22.9334400587 88% => OK
Discourse Markers: 5.75 5.23603664747 110% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 7.0 3.70975609756 189% => OK
Sentences with negative sentiment : 0.0 1.13902439024 0% => More negative sentences wanted.
Sentences with neutral sentiment: 1.0 4.09268292683 24% => More facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.220160903937 0.215688989381 102% => OK
Sentence topic coherence: 0.110845021619 0.103423049105 107% => OK
Sentence topic coherence SD: 0.0408695230743 0.0843802449381 48% => Sentences are similar to each other.
Paragraph topic coherence: 0.149462228469 0.15604864568 96% => OK
Paragraph topic coherence SD: 0.0228582488653 0.0819641961636 28% => Paragraphs are similar to each other. Some content may get duplicated or it is not exactly right on the topic.
Essay readability:
automated_readability_index: 9.8 13.2329268293 74% => Automated_readability_index is low.
flesch_reading_ease: 76.56 61.2550243902 125% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 7.6 10.3012195122 74% => OK
coleman_liau_index: 8.76 11.4140731707 77% => OK
dale_chall_readability_score: 7.26 8.06136585366 90% => OK
difficult_words: 27.0 40.7170731707 66% => More difficult words wanted.
linsear_write_formula: 7.5 11.4329268293 66% => OK
gunning_fog: 10.0 10.9970731707 91% => OK
text_standard: 8.0 11.0658536585 72% => OK
What are above readability scores?
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Rates: 56.1797752809 out of 100
Scores by essay e-grader: 5.0 Out of 9
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Note: the e-grader does NOT examine the meaning of words and ideas. VIP users will receive further evaluations by advanced module of e-grader and human graders.