The reading and the speaker discuss the extinction of Steller's sea cows from different perspectives. The author of the reading give three reasons to support his ideas. However, the speaker casts doubt on the claims made in the article. He says that none of the ideas are convincing.
First of all, the author of the reading points out that the Steller's sea cows were over hunted by a group of native Siberian dwellers. This point is challenged by the speaker. He restates the fact that the Steller's sea cows have huge size. They would reach weights of 8-10 metric tons and their lengths up to 9 meters. One Steller's sea cow could feed a village of people in a month. Meanwhile, the populations of people at that time were small. Therefore, they did not need to hunt many Steller's sea cow for food.
Secondly, the author of the reading contends that the Steller's sea cows might be extinct because of the disturbance of ecosystems led to the decreasing of the kelp, which is the main food resource of the sea cows. The speaker rebuts this argument by saying that severe climate in Bering island would affect not only kelp but also other marines, such as whales. However, local fishers did not report any thing about the reduction of whales at all.
Finally, the author of the reading states that European killed a lot of the Steller's sea cows for fur trading. The speaker, on the other hand, opposes this point by saying that the populations of the Steller's sea cows were reduced already considerably before European arrived. In fact, the European arrived at the Bering island after the extinction of the Steller's sea cows about hundreds years. Therefore, they could not be the cause of the extinction of the Steller's sea cows.
Grammar and spelling errors:
Line 3, column 400, Rule ID: ANY_BODY[2]
Message: Did you mean 'anything'?
Suggestion: anything
.... However, local fishers did not report any thing about the reduction of whales at all. ...
^^^^^^^^^
Transition Words or Phrases used:
also, but, finally, first, however, if, second, secondly, so, therefore, well, while, in fact, such as, first of all, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 8.0 10.4613686534 76% => OK
Auxiliary verbs: 6.0 5.04856512141 119% => OK
Conjunction : 3.0 7.30242825607 41% => More conjunction wanted.
Relative clauses : 9.0 12.0772626932 75% => More relative clauses wanted.
Pronoun: 18.0 22.412803532 80% => OK
Preposition: 46.0 30.3222958057 152% => OK
Nominalization: 6.0 5.01324503311 120% => OK
Performance on vocabulary words:
No of characters: 1431.0 1373.03311258 104% => OK
No of words: 302.0 270.72406181 112% => OK
Chars per words: 4.73841059603 5.08290768461 93% => OK
Fourth root words length: 4.1687104957 4.04702891845 103% => OK
Word Length SD: 2.39118934854 2.5805825403 93% => OK
Unique words: 154.0 145.348785872 106% => OK
Unique words percentage: 0.509933774834 0.540411800872 94% => More unique words wanted or less content wanted.
syllable_count: 419.4 419.366225166 100% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 6.0 3.25607064018 184% => OK
Article: 10.0 8.23620309051 121% => 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: 18.0 13.0662251656 138% => OK
Sentence length: 16.0 21.2450331126 75% => The Avg. Sentence Length is relatively short.
Sentence length SD: 44.2628582141 49.2860985944 90% => OK
Chars per sentence: 79.5 110.228320801 72% => OK
Words per sentence: 16.7777777778 21.698381199 77% => OK
Discourse Markers: 7.5 7.06452816374 106% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 6.0 4.45695364238 135% => OK
Sentences with neutral sentiment: 7.0 4.27373068433 164% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.442844787652 0.272083759551 163% => OK
Sentence topic coherence: 0.146708557014 0.0996497079465 147% => OK
Sentence topic coherence SD: 0.115340534173 0.0662205650399 174% => OK
Paragraph topic coherence: 0.277190196427 0.162205337803 171% => OK
Paragraph topic coherence SD: 0.108791792295 0.0443174109184 245% => More connections among paragraphs wanted.
Essay readability:
automated_readability_index: 9.3 13.3589403974 70% => Automated_readability_index is low.
flesch_reading_ease: 72.16 53.8541721854 134% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 7.2 11.0289183223 65% => OK
coleman_liau_index: 9.92 12.2367328918 81% => OK
dale_chall_readability_score: 7.15 8.42419426049 85% => OK
difficult_words: 52.0 63.6247240618 82% => More difficult words wanted.
linsear_write_formula: 5.5 10.7273730684 51% => Linsear_write_formula is low.
gunning_fog: 8.4 10.498013245 80% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
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Rates: 71.6666666667 out of 100
Scores by essay e-grader: 21.5 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.