The two graphs show the main sources of energy in the USA in the 1980s and the 1990s.
The two pie charts compare five main energy sources in the United States in 1980 and 1990.
Overall, there was an increase in nuclear power and coal whereas oil supply dropped during the period. Besides, the percentage of hydroelectric power and natural gas remained stable.
Oil had the largest percentage of energy in the USA in the 1980s, which made up for 42% of the country's energy. However, this number fell considerably to just a third of the total energy supply in 1990. In contrast, the proportions of coal and nuclear power increased in the 1980 - 1990 period. Coal energy rose from 22% to 27% whereas nuclear power doubled from 5% to 10% in 1990.
Interestingly, natural gas was the second largest energy source in 1980, which accounted for 26% of the total energy supply. However, it dropped by 1% and became lower than coal in 1990. Meanwhile, hydroelectric power was the smallest source of energy in America. It only provided 5% of America's energy in 1980 and this number remained the same ten years later.
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Comments
Essay evaluations by e-grader
Transition Words or Phrases used:
besides, however, second, so, third, whereas, 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 : 6.0 6.8 88% => OK
Relative clauses : 2.0 3.15609756098 63% => OK
Pronoun: 4.0 5.60731707317 71% => OK
Preposition: 29.0 33.7804878049 86% => OK
Nominalization: 0.0 3.97073170732 0% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 853.0 965.302439024 88% => OK
No of words: 176.0 196.424390244 90% => More content wanted.
Chars per words: 4.84659090909 4.92477711251 98% => OK
Fourth root words length: 3.64232057368 3.73543355544 98% => OK
Word Length SD: 2.50768552765 2.65546596893 94% => OK
Unique words: 93.0 106.607317073 87% => More unique words wanted.
Unique words percentage: 0.528409090909 0.547539520022 97% => OK
syllable_count: 251.1 283.868780488 88% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => 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: 1.0 3.36585365854 30% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 11.0 8.94146341463 123% => OK
Sentence length: 16.0 22.4926829268 71% => The Avg. Sentence Length is relatively short.
Sentence length SD: 16.3449388128 43.030603864 38% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 77.5454545455 112.824112599 69% => OK
Words per sentence: 16.0 22.9334400587 70% => OK
Discourse Markers: 5.81818181818 5.23603664747 111% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 10.0 3.70975609756 270% => Less positive sentences wanted.
Sentences with negative sentiment : 1.0 1.13902439024 88% => OK
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: 0.190573207022 0.215688989381 88% => OK
Sentence topic coherence: 0.0744865636464 0.103423049105 72% => OK
Sentence topic coherence SD: 0.077484618634 0.0843802449381 92% => OK
Paragraph topic coherence: 0.126542301191 0.15604864568 81% => OK
Paragraph topic coherence SD: 0.0861524192961 0.0819641961636 105% => OK
Essay readability:
automated_readability_index: 9.4 13.2329268293 71% => Automated_readability_index is low.
flesch_reading_ease: 72.16 61.2550243902 118% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 7.2 10.3012195122 70% => OK
coleman_liau_index: 10.55 11.4140731707 92% => OK
dale_chall_readability_score: 7.66 8.06136585366 95% => OK
difficult_words: 36.0 40.7170731707 88% => OK
linsear_write_formula: 7.5 11.4329268293 66% => OK
gunning_fog: 8.4 10.9970731707 76% => OK
text_standard: 8.0 11.0658536585 72% => OK
What are above readability scores?
---------------------
Rates: 67.4157303371 out of 100
Scores by essay e-grader: 6.0 Out of 9
---------------------
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.
Transition Words or Phrases used:
besides, however, second, so, third, whereas, 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 : 6.0 6.8 88% => OK
Relative clauses : 2.0 3.15609756098 63% => OK
Pronoun: 4.0 5.60731707317 71% => OK
Preposition: 29.0 33.7804878049 86% => OK
Nominalization: 0.0 3.97073170732 0% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 853.0 965.302439024 88% => OK
No of words: 176.0 196.424390244 90% => More content wanted.
Chars per words: 4.84659090909 4.92477711251 98% => OK
Fourth root words length: 3.64232057368 3.73543355544 98% => OK
Word Length SD: 2.50768552765 2.65546596893 94% => OK
Unique words: 93.0 106.607317073 87% => More unique words wanted.
Unique words percentage: 0.528409090909 0.547539520022 97% => OK
syllable_count: 251.1 283.868780488 88% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => 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: 1.0 3.36585365854 30% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 11.0 8.94146341463 123% => OK
Sentence length: 16.0 22.4926829268 71% => The Avg. Sentence Length is relatively short.
Sentence length SD: 16.3449388128 43.030603864 38% => The essay contains lots of sentences with the similar length. More sentence varieties wanted.
Chars per sentence: 77.5454545455 112.824112599 69% => OK
Words per sentence: 16.0 22.9334400587 70% => OK
Discourse Markers: 5.81818181818 5.23603664747 111% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 10.0 3.70975609756 270% => Less positive sentences wanted.
Sentences with negative sentiment : 1.0 1.13902439024 88% => OK
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: 0.190573207022 0.215688989381 88% => OK
Sentence topic coherence: 0.0744865636464 0.103423049105 72% => OK
Sentence topic coherence SD: 0.077484618634 0.0843802449381 92% => OK
Paragraph topic coherence: 0.126542301191 0.15604864568 81% => OK
Paragraph topic coherence SD: 0.0861524192961 0.0819641961636 105% => OK
Essay readability:
automated_readability_index: 9.4 13.2329268293 71% => Automated_readability_index is low.
flesch_reading_ease: 72.16 61.2550243902 118% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 7.2 10.3012195122 70% => OK
coleman_liau_index: 10.55 11.4140731707 92% => OK
dale_chall_readability_score: 7.66 8.06136585366 95% => OK
difficult_words: 36.0 40.7170731707 88% => OK
linsear_write_formula: 7.5 11.4329268293 66% => OK
gunning_fog: 8.4 10.9970731707 76% => OK
text_standard: 8.0 11.0658536585 72% => OK
What are above readability scores?
---------------------
Rates: 67.4157303371 out of 100
Scores by essay e-grader: 6.0 Out of 9
---------------------
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.