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 two graphs indicates the main sources of energy in the USA in 1980 and 1990.
It was clear that oil diminished considerably while the percentage of hydroelectric power and natural gas remained the same and coal and nuclear power slightly rose over the period 1980 to 1990.
Oil which was the largest percentage of the main sources of energy in the USA decreased from 42% in 1980 to 33% in 1990. Hydroelectric power had no change in the percentage and stayed at 5% of the total energy . Between 1980 and 1990 natural gas remained steady, falling by no more than 1%.There was a fluctuation in coal and nuclear power which expanded 4% and 5% respectively at that time. Specially, nuclear power increased double.
The USA had the main sources of energy which fluctuated over a ten year period.

Votes
Average: 5.6 (1 vote)
Essays by the user:

Grammar and spelling errors:
Line 2, column 46, Rule ID: WHITESPACE_RULE
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...s clear that oil diminished considerably while the percentage of hydroelectric po...
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Line 2, column 152, Rule ID: WHITESPACE_RULE
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...ined the same and coal and nuclear power slightly rose over the period 1980 to 1...
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Line 2, column 167, Rule ID: WHITESPACE_RULE
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...nd coal and nuclear power slightly rose over the period 1980 to 1990. Oil which...
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Line 3, column 78, Rule ID: WHITESPACE_RULE
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...of the main sources of energy in the USA decreased from 42% in 1980 to 33% in 199...
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Line 3, column 210, Rule ID: COMMA_PARENTHESIS_WHITESPACE
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Suggestion: .
...age and stayed at 5% of the total energy . Between 1980 and 1990 natural gas remai...
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Line 3, column 291, Rule ID: SENTENCE_WHITESPACE
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Suggestion: There
...ined steady, falling by no more than 1%.There was a fluctuation in coal and nuclear p...
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Line 3, column 355, Rule ID: WHITESPACE_RULE
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...in coal and nuclear power which expanded 4% and 5% respectively at that time. ...
^^
Line 3, column 363, Rule ID: WHITESPACE_RULE
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...and nuclear power which expanded 4% and 5% respectively at that time. Special...
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Line 3, column 367, Rule ID: WHITESPACE_RULE
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...nuclear power which expanded 4% and 5% respectively at that time. Specially, ...
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Line 3, column 381, Rule ID: WHITESPACE_RULE
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...which expanded 4% and 5% respectively at that time. Specially, nuclear power ...
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Transition Words or Phrases used:
so, while

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 : 8.0 6.8 118% => OK
Relative clauses : 5.0 3.15609756098 158% => OK
Pronoun: 3.0 5.60731707317 54% => OK
Preposition: 22.0 33.7804878049 65% => OK
Nominalization: 1.0 3.97073170732 25% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.

Performance on vocabulary words:
No of characters: 659.0 965.302439024 68% => OK
No of words: 139.0 196.424390244 71% => More content wanted.
Chars per words: 4.74100719424 4.92477711251 96% => OK
Fourth root words length: 3.43363162301 3.73543355544 92% => OK
Word Length SD: 2.65094322836 2.65546596893 100% => OK
Unique words: 70.0 106.607317073 66% => More unique words wanted.
Unique words percentage: 0.503597122302 0.547539520022 92% => More unique words wanted or less content wanted.
syllable_count: 193.5 283.868780488 68% => 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: 2.0 4.33902439024 46% => 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: 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: 19.0 22.4926829268 84% => The Avg. Sentence Length is relatively short.
Sentence length SD: 53.231109517 43.030603864 124% => OK
Chars per sentence: 94.1428571429 112.824112599 83% => OK
Words per sentence: 19.8571428571 22.9334400587 87% => OK
Discourse Markers: 1.28571428571 5.23603664747 25% => More transition words/phrases wanted.
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 10.0 1.69756097561 589% => Less language errors wanted.
Sentences with positive sentiment : 6.0 3.70975609756 162% => OK
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: 0.253742030169 0.215688989381 118% => OK
Sentence topic coherence: 0.149251982044 0.103423049105 144% => OK
Sentence topic coherence SD: 0.122155550879 0.0843802449381 145% => OK
Paragraph topic coherence: 0.203405841696 0.15604864568 130% => OK
Paragraph topic coherence SD: 0.124581592865 0.0819641961636 152% => OK

Essay readability:
automated_readability_index: 10.8 13.2329268293 82% => Automated_readability_index is low.
flesch_reading_ease: 69.11 61.2550243902 113% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 8.3 10.3012195122 81% => OK
coleman_liau_index: 10.21 11.4140731707 89% => OK
dale_chall_readability_score: 7.76 8.06136585366 96% => OK
difficult_words: 28.0 40.7170731707 69% => More difficult words wanted.
linsear_write_formula: 11.0 11.4329268293 96% => OK
gunning_fog: 9.6 10.9970731707 87% => OK
text_standard: 11.0 11.0658536585 99% => OK
What are above readability scores?

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More content wanted.
Minimum 150 words wanted.

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.