The pie charts show the main sources of energy of USA in 1980 and 1990.
The two pie charts depict the proportion of five primary sources of energy in the USA: oil, natural gas, coal, hydroelectric power and nuclear power between 1980 and 1990. It is noticeable that the percentage of oil decreased and that of hydroelectric power maintained. By contrast, there was a dramatic growth in the proportion of coal and nuclear power as one of the main sources.
Oil accounted for 42% in 1980. Despite its decrease to 33%, oil still had a good proportion in 1990. The percentage of natural gas also had a slight decline from 26% to 25%. That of hydroelectric power remained at 5%.
On the other hand, the proportion of nuclear power was similar to that of hydroelectric power in 1980, at exactly 5 percent. This made up about 10% in 1990 while the proportion of coal grew from almost a fifth to just under a third
Transition Words or Phrases used:
also, if, so, still, third, while, on the other hand
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 : 4.0 3.15609756098 127% => OK
Pronoun: 7.0 5.60731707317 125% => Less pronouns wanted
Preposition: 32.0 33.7804878049 95% => OK
Nominalization: 5.0 3.97073170732 126% => OK
Performance on vocabulary words:
No of characters: 716.0 965.302439024 74% => OK
No of words: 150.0 196.424390244 76% => More content wanted.
Chars per words: 4.77333333333 4.92477711251 97% => OK
Fourth root words length: 3.49963551158 3.73543355544 94% => OK
Word Length SD: 2.85451688849 2.65546596893 107% => OK
Unique words: 90.0 106.607317073 84% => More unique words wanted.
Unique words percentage: 0.6 0.547539520022 110% => OK
syllable_count: 199.8 283.868780488 70% => OK
avg_syllables_per_word: 1.3 1.45097560976 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 1.53170731707 196% => OK
Article: 3.0 4.33902439024 69% => OK
Subordination: 0.0 1.07073170732 0% => More adverbial clause wanted.
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 4.0 3.36585365854 119% => OK
Performance on sentences:
How many sentences: 8.0 8.94146341463 89% => OK
Sentence length: 18.0 22.4926829268 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 42.5881438901 43.030603864 99% => OK
Chars per sentence: 89.5 112.824112599 79% => OK
Words per sentence: 18.75 22.9334400587 82% => OK
Discourse Markers: 6.5 5.23603664747 124% => OK
Paragraphs: 3.0 3.83414634146 78% => More paragraphs wanted.
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 4.0 3.70975609756 108% => OK
Sentences with negative sentiment : 0.0 1.13902439024 0% => More negative sentences wanted.
Sentences with neutral sentiment: 4.0 4.09268292683 98% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.178972949658 0.215688989381 83% => OK
Sentence topic coherence: 0.0721845765149 0.103423049105 70% => OK
Sentence topic coherence SD: 0.103561101984 0.0843802449381 123% => OK
Paragraph topic coherence: 0.120205725682 0.15604864568 77% => OK
Paragraph topic coherence SD: 0.0837400499562 0.0819641961636 102% => OK
Essay readability:
automated_readability_index: 10.4 13.2329268293 79% => Automated_readability_index is low.
flesch_reading_ease: 78.59 61.2550243902 128% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 6.8 10.3012195122 66% => OK
coleman_liau_index: 10.39 11.4140731707 91% => OK
dale_chall_readability_score: 7.06 8.06136585366 88% => OK
difficult_words: 24.0 40.7170731707 59% => More difficult words wanted.
linsear_write_formula: 11.0 11.4329268293 96% => OK
gunning_fog: 9.2 10.9970731707 84% => OK
text_standard: 11.0 11.0658536585 99% => OK
What are above readability scores?
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More content wanted.
Rates: 61.797752809 out of 100
Scores by essay e-grader: 5.5 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.