tpo 22: replacing gasoline with ethanol

The lecturer disputes the author suggested theory that ethanol is a not a good alternative to gasoline to produce energy. He provides three concrete reasons to cast doubt about the author's claims.
First, according to the text ethanol may trap heat and causes global warming because it releases carbon dioxide into the air. However, the lecturer finds this idea debatable. He contend that indeed ethanol production may reduce global warming because growing corn consumes carbon dioxide from air and releases oxygen to the atmosphere which may contribute to a decrease in the elevated temperatures.
Second, the lecturer contradicts the fallacy of the passage that the consumption of corn for energy may reduce the amount of food available for animals because animals feed on corn. However, the lecturer argues that theoretically speaking ethanol production has no effect on animal food supply. He contends that the availability of food for animals will not be affected because animals do not feed on cellulose which is the part used for the production ethanol.
Finally, the author claims that the cost of production of ethanol for energy is high compared to the cost of production of gasoline. Again, the lecturer refutes this claim by stating that the cost of production will decrease as larger amounts of ethanol is produced. According to the lecturer a study have shown that a three time increase in the production of ethanol would significantly reduce the cost of production by forty percent.

Votes
Average: 8.1 (1 vote)
Essay Categories

Grammar and spelling errors:
Line 2, column 178, Rule ID: HE_VERB_AGR[1]
Message: The pronoun 'He' must be used with a third-person verb: 'contends'.
Suggestion: contends
... lecturer finds this idea debatable. He contend that indeed ethanol production may redu...
^^^^^^^

Transition Words or Phrases used:
but, finally, first, however, if, may, second, so

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

Performance on Part of Speech:
To be verbs : 5.0 10.4613686534 48% => More to be verbs wanted.
Auxiliary verbs: 7.0 5.04856512141 139% => OK
Conjunction : 2.0 7.30242825607 27% => More conjunction wanted.
Relative clauses : 10.0 12.0772626932 83% => OK
Pronoun: 14.0 22.412803532 62% => OK
Preposition: 30.0 30.3222958057 99% => OK
Nominalization: 9.0 5.01324503311 180% => OK

Performance on vocabulary words:
No of characters: 1259.0 1373.03311258 92% => OK
No of words: 242.0 270.72406181 89% => More content wanted.
Chars per words: 5.20247933884 5.08290768461 102% => OK
Fourth root words length: 3.94415379849 4.04702891845 97% => OK
Word Length SD: 2.688635022 2.5805825403 104% => OK
Unique words: 123.0 145.348785872 85% => More unique words wanted.
Unique words percentage: 0.50826446281 0.540411800872 94% => More unique words wanted or less content wanted.
syllable_count: 405.0 419.366225166 97% => OK
avg_syllables_per_word: 1.7 1.55342163355 109% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 3.0 3.25607064018 92% => OK
Article: 6.0 8.23620309051 73% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 2.0 2.5761589404 78% => OK

Performance on sentences:
How many sentences: 11.0 13.0662251656 84% => 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: 22.0 21.2450331126 104% => OK
Sentence length SD: 46.9186036866 49.2860985944 95% => OK
Chars per sentence: 114.454545455 110.228320801 104% => OK
Words per sentence: 22.0 21.698381199 101% => OK
Discourse Markers: 4.45454545455 7.06452816374 63% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 2.0 4.27373068433 47% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.360361969743 0.272083759551 132% => OK
Sentence topic coherence: 0.142796673586 0.0996497079465 143% => OK
Sentence topic coherence SD: 0.0668322222548 0.0662205650399 101% => OK
Paragraph topic coherence: 0.202118798688 0.162205337803 125% => OK
Paragraph topic coherence SD: 0.0622420141905 0.0443174109184 140% => OK

Essay readability:
automated_readability_index: 14.1 13.3589403974 106% => OK
flesch_reading_ease: 40.69 53.8541721854 76% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 13.1 11.0289183223 119% => OK
coleman_liau_index: 12.88 12.2367328918 105% => OK
dale_chall_readability_score: 8.84 8.42419426049 105% => OK
difficult_words: 63.0 63.6247240618 99% => OK
linsear_write_formula: 8.0 10.7273730684 75% => OK
gunning_fog: 10.8 10.498013245 103% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?

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Rates: 81.6666666667 out of 100
Scores by essay e-grader: 24.5 Out of 30
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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.