The two charts show the main sources of energy in the USA in 1980 and 1990.Summarize the information by selecting and reporting the main features, and make comparisions where relevant.

The two pie charts compare the production of the major sources of energy in the USA between 1980 and 1990. Overall what stands out from the both charts are that there was an significant increase in the use of coal, whereas the use of oil decreased markedly over the time period mentioned in the question.

Looking at the details, although non renewable energy oil represented just over the two fifths of total energy sources, there was considerable decline to 33% constituting only an one third in 1990. However, in regards to another important natural gas that witnessed a slight decrease between 26% and 25% from 1980 to 1990. Even though initially coal stood at 22%, over the next decade, there was a marked rise in the demand of it to 27%.

Likewise coal, nuclear power energy followed the same trend which meant that the application of this type of energy rose doubled from 5% to 10% in a 10 year period. While in case of hydroelectric power source, negligible increase in it's use was noticed between 5% and 6 % as opposed to gas which was as similar as in the beginning of the period.

Votes
Average: 7.9 (3 votes)

Grammar and spelling errors:
Line 1, column 172, Rule ID: EN_A_VS_AN
Message: Use 'a' instead of 'an' if the following word doesn't start with a vowel sound, e.g. 'a sentence', 'a university'
Suggestion: a
...from the both charts are that there was an significant increase in the use of coal...
^^
Line 3, column 177, Rule ID: EN_A_VS_AN
Message: Use 'a' instead of 'an' if the following word doesn't start with a vowel sound, e.g. 'a sentence', 'a university'
Suggestion: a
...erable decline to 33% constituting only an one third in 1990. However, in regards ...
^^
Line 3, column 208, Rule ID: IN_REGARD_TO[1]
Message: Use simply 'regarding' or 'with regard to'.
Suggestion: regarding; with regard to
...ing only an one third in 1990. However, in regards to another important natural gas that witn...
^^^^^^^^^^^^^
Line 5, column 1, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: Likewise,
...ked rise in the demand of it to 27%. Likewise coal, nuclear power energy followed the...
^^^^^^^^

Transition Words or Phrases used:
however, if, likewise, look, so, third, whereas, while

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 6.0 7.0 86% => OK
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 3.0 6.8 44% => More conjunction wanted.
Relative clauses : 5.0 3.15609756098 158% => OK
Pronoun: 6.0 5.60731707317 107% => OK
Preposition: 38.0 33.7804878049 112% => OK
Nominalization: 3.0 3.97073170732 76% => OK

Performance on vocabulary words:
No of characters: 902.0 965.302439024 93% => OK
No of words: 194.0 196.424390244 99% => OK
Chars per words: 4.64948453608 4.92477711251 94% => OK
Fourth root words length: 3.73207559907 3.73543355544 100% => OK
Word Length SD: 2.50471744264 2.65546596893 94% => OK
Unique words: 115.0 106.607317073 108% => OK
Unique words percentage: 0.592783505155 0.547539520022 108% => OK
syllable_count: 275.4 283.868780488 97% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 1.53170731707 0% => OK
Interrogative: 0.0 0.114634146341 0% => OK
Article: 1.0 4.33902439024 23% => OK
Subordination: 3.0 1.07073170732 280% => Less adverbial clause wanted.
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 2.0 3.36585365854 59% => 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: 27.0 22.4926829268 120% => The Avg. Sentence Length is relatively long.
Sentence length SD: 36.4019510578 43.030603864 85% => OK
Chars per sentence: 128.857142857 112.824112599 114% => OK
Words per sentence: 27.7142857143 22.9334400587 121% => OK
Discourse Markers: 7.71428571429 5.23603664747 147% => OK
Paragraphs: 3.0 3.83414634146 78% => More paragraphs wanted.
Language errors: 4.0 1.69756097561 236% => 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: 0.131794543586 0.215688989381 61% => OK
Sentence topic coherence: 0.0729559421678 0.103423049105 71% => OK
Sentence topic coherence SD: 0.0935421859128 0.0843802449381 111% => OK
Paragraph topic coherence: 0.0954674063781 0.15604864568 61% => OK
Paragraph topic coherence SD: 0.0549139480911 0.0819641961636 67% => OK

Essay readability:
automated_readability_index: 14.3 13.2329268293 108% => OK
flesch_reading_ease: 60.99 61.2550243902 100% => OK
smog_index: 8.8 6.51609756098 135% => OK
flesch_kincaid_grade: 11.5 10.3012195122 112% => OK
coleman_liau_index: 9.99 11.4140731707 88% => OK
dale_chall_readability_score: 8.64 8.06136585366 107% => OK
difficult_words: 45.0 40.7170731707 111% => OK
linsear_write_formula: 14.0 11.4329268293 122% => OK
gunning_fog: 12.8 10.9970731707 116% => OK
text_standard: 9.0 11.0658536585 81% => OK
What are above readability scores?

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Rates: 78.6516853933 out of 100
Scores by essay e-grader: 7.0 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.

in the USA between 1980 and 1990.
in the USA in the year 1980 and 1990. //read the charts carefully. it is not 'between', but 'The two charts show the main sources of energy in the USA in 1980 and 1990.'

there was considerable decline
there was a considerable decline

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Attribute Value Ideal
Final score: 7.5 out of 9
Category: Very Good Excellent
No. of Grammatical Errors: 2 2
No. of Spelling Errors: 0 2
No. of Sentences: 7 10
No. of Words: 194 200
No. of Characters: 871 1000
No. of Different Words: 111 100
Fourth Root of Number of Words: 3.732 4.0
Average Word Length: 4.49 4.6
Word Length SD: 2.496 2.4
No. of Words greater than 5 chars: 61 60
No. of Words greater than 6 chars: 43 50
No. of Words greater than 7 chars: 23 40
No. of Words greater than 8 chars: 15 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 27.714 21.0
Sentence Length SD: 5.75 7.5
Use of Discourse Markers (%): 0.714 0.12
Sentence-Text Coherence: 0.454 0.35
Sentence-Para Coherence: 0.675 0.50
Sentence-Sentence Coherence: 0.059 0.07
Number of Paragraphs: 3 4