The given graph shows the main sources of energy in the USA in two separate years.
The pie charts compare the five different sources of energy in the USA in two separate years.
Overall, the primary source of energy in the USA was the oil in both years, whereas hydroelectric power was the least. It is also noticeable that there was a decrease in energy production by oil and natural gas while the figures for coal and nuclear power increased slightly.
The amount of energy produced by oil in 1980 was 42%, which was by far the highest, and this figure dropped to around a third in 1990. Energy production from the hydroelectric power station remained stable in both years at 5%, which was the lowest figure in the period given.
The energy generated by coal and nuclear power both went up by 5% in 1990 to 27% and 10% respectively. By contrast, the second largest source of energy in 1980, which was the natural gas, had a slight drop of 1% to a quarter in 1990.
Transition Words or Phrases used:
also, if, second, so, third, whereas, while
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 8.0 7.0 114% => OK
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 5.0 6.8 74% => OK
Relative clauses : 4.0 3.15609756098 127% => OK
Pronoun: 3.0 5.60731707317 54% => OK
Preposition: 30.0 33.7804878049 89% => OK
Nominalization: 3.0 3.97073170732 76% => OK
Performance on vocabulary words:
No of characters: 737.0 965.302439024 76% => OK
No of words: 161.0 196.424390244 82% => More content wanted.
Chars per words: 4.57763975155 4.92477711251 93% => OK
Fourth root words length: 3.56210296601 3.73543355544 95% => OK
Word Length SD: 2.44956849008 2.65546596893 92% => OK
Unique words: 87.0 106.607317073 82% => More unique words wanted.
Unique words percentage: 0.540372670807 0.547539520022 99% => OK
syllable_count: 218.7 283.868780488 77% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 1.53170731707 65% => OK
Article: 5.0 4.33902439024 115% => OK
Subordination: 0.0 1.07073170732 0% => More adverbial clause wanted.
Conjunction: 1.0 0.482926829268 207% => Less conjunction wanted as sentence beginning.
Preposition: 1.0 3.36585365854 30% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 7.0 8.94146341463 78% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 23.0 22.4926829268 102% => OK
Sentence length SD: 20.3309355116 43.030603864 47% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 105.285714286 112.824112599 93% => OK
Words per sentence: 23.0 22.9334400587 100% => OK
Discourse Markers: 6.14285714286 5.23603664747 117% => 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: 0.0 4.09268292683 0% => More facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.226343834981 0.215688989381 105% => OK
Sentence topic coherence: 0.128015982427 0.103423049105 124% => OK
Sentence topic coherence SD: 0.122755731236 0.0843802449381 145% => OK
Paragraph topic coherence: 0.179337521388 0.15604864568 115% => OK
Paragraph topic coherence SD: 0.131818069735 0.0819641961636 161% => OK
Essay readability:
automated_readability_index: 11.6 13.2329268293 88% => Automated_readability_index is low.
flesch_reading_ease: 65.05 61.2550243902 106% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 9.9 10.3012195122 96% => OK
coleman_liau_index: 9.58 11.4140731707 84% => OK
dale_chall_readability_score: 7.43 8.06136585366 92% => OK
difficult_words: 27.0 40.7170731707 66% => More difficult words wanted.
linsear_write_formula: 10.5 11.4329268293 92% => OK
gunning_fog: 11.2 10.9970731707 102% => OK
text_standard: 10.0 11.0658536585 90% => OK
What are above readability scores?
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Rates: 73.0337078652 out of 100
Scores by essay e-grader: 6.5 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.