Sea Cows
The reading passage provides three theories about the reasons that might cause sea cows extinction. However, the lecturer finds all the theories discussed by the reading passage dubious and suggested some evidence to refute them all.
First, the writer claims that overhunting of the sea caws by the native people might cause the see cows extinction. On the contrary, the professor dismisses this idea due to the fact that sea cows were large animals with nine meters long and about ten tons of weight. On the other hand, the native people's population was not very large. So, they did not need to hunt a large number of sea cows for feed and they could not be responsible for sea cows extinction.
Furthermore, the author asserts that a decrease in the number of available food sources for sea cows led to extinction. It claims that changes in ecosystems decrease the kept which was the main source of the sea cows' food. Conversely, the speaker underlines the fact that if ecosystems were changed in those years, other marine animals such as Whales should be affected. However, there is not any report that proves any changes in a number of other species.
Finally, the reading passage believes that European fur traders could be the reason for sea cows extinction. Because they advantaged weapons. Also, the last sea cow has been caught by them. The reading, on the other hand, makes the argument that the sea cows extinct soon after European fur traders arrived there. Also, when they arrived the number of sea cows was low.
Grammar and spelling errors:
Line 2, column 298, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'peoples'' or 'people's'?
Suggestion: peoples'; people's
...f weight. On the other hand, the native peoples population was not very large. So, they...
^^^^^^^
Line 2, column 367, Rule ID: LARGE_NUMBER_OF[1]
Message: Specify a number, remove phrase, or simply use 'many' or 'numerous'
Suggestion: many; numerous
...ry large. So, they did not need to hunt a large number of sea cows for feed and they could not be...
^^^^^^^^^^^^^^^^^
Line 4, column 109, Rule ID: SENTENCE_FRAGMENT[1]
Message: “Because” at the beginning of a sentence requires a 2nd clause. Maybe a comma, question or exclamation mark is missing, or the sentence is incomplete and should be joined with the following sentence.
... be the reason for sea cows extinction. Because they advantaged weapons. Also, the last...
^^^^^^^
Transition Words or Phrases used:
also, conversely, finally, first, furthermore, however, if, so, such as, on the contrary, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 10.0 10.4613686534 96% => OK
Auxiliary verbs: 6.0 5.04856512141 119% => OK
Conjunction : 3.0 7.30242825607 41% => More conjunction wanted.
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 18.0 22.412803532 80% => OK
Preposition: 25.0 30.3222958057 82% => OK
Nominalization: 8.0 5.01324503311 160% => OK
Performance on vocabulary words:
No of characters: 1268.0 1373.03311258 92% => OK
No of words: 262.0 270.72406181 97% => OK
Chars per words: 4.83969465649 5.08290768461 95% => OK
Fourth root words length: 4.02323427807 4.04702891845 99% => OK
Word Length SD: 2.35835861771 2.5805825403 91% => OK
Unique words: 138.0 145.348785872 95% => More unique words wanted.
Unique words percentage: 0.526717557252 0.540411800872 97% => OK
syllable_count: 379.8 419.366225166 91% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 10.0 8.23620309051 121% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 3.0 2.5761589404 116% => OK
Performance on sentences:
How many sentences: 15.0 13.0662251656 115% => OK
Sentence length: 17.0 21.2450331126 80% => The Avg. Sentence Length is relatively short.
Sentence length SD: 34.9586422315 49.2860985944 71% => OK
Chars per sentence: 84.5333333333 110.228320801 77% => OK
Words per sentence: 17.4666666667 21.698381199 80% => OK
Discourse Markers: 7.13333333333 7.06452816374 101% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 3.0 4.19205298013 72% => 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: 6.0 4.27373068433 140% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.527962066441 0.272083759551 194% => OK
Sentence topic coherence: 0.21003991527 0.0996497079465 211% => Sentence topic similarity is high.
Sentence topic coherence SD: 0.155881244633 0.0662205650399 235% => The coherence between sentences is low.
Paragraph topic coherence: 0.33614035693 0.162205337803 207% => OK
Paragraph topic coherence SD: 0.13313831086 0.0443174109184 300% => More connections among paragraphs wanted.
Essay readability:
automated_readability_index: 10.1 13.3589403974 76% => Automated_readability_index is low.
flesch_reading_ease: 71.14 53.8541721854 132% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 7.6 11.0289183223 69% => OK
coleman_liau_index: 10.5 12.2367328918 86% => OK
dale_chall_readability_score: 7.49 8.42419426049 89% => OK
difficult_words: 50.0 63.6247240618 79% => More difficult words wanted.
linsear_write_formula: 7.5 10.7273730684 70% => OK
gunning_fog: 8.8 10.498013245 84% => OK
text_standard: 8.0 11.2008830022 71% => OK
What are above readability scores?
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Rates: 75.0 out of 100
Scores by essay e-grader: 22.5 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.