The reading and the lecture are both about the extinction of Steller’s sea cow, which had been living in the water around Bering Island in Siberia. The author of the reading feels that there are some theories that describe causes of the extinction of the Steller’s sea cow while the lecture opposes the assertion of the author.
To begin with, the author argues that the sea cows might be over hunted by Siberian people. According to the article, there is a possibility that Siberian people hunted sea cows for their food because they were good sources of food for them. This specific argument is challenged by the author. He is of the opinion that the speculation which is that sea cows were one of the foods of Siberian people is fact, however, those reasons cannot lead them to extinction. Sea cows were pretty massive animals. Hence, even if Siberian people hunted it for their food, only one sea cow might be enough for them to eat.
Secondly, the writer suggests that the ecosystem disturbance is also reasonable to explain the issue of extinction of sea cows. In the article, it is said that ecosystem disturbance provoked the decline of their main source of food: kelp. The lecturer, however, rebuts this by mentioning that the decline of the kelp was not a problem that existed in that time. He elaborates on this by bringing up the point that the whales, to illustrate, which has existed by depending on kelp, still exists now. If the decline of the kelp was a fact, whales cannot exist currently.
Lastly, the author posits that the last doubtful reason for this topic is European fur traders. Moreover, it is stated in the article that they had been trying to hunt them to acquire its fur by using their weapons. However, the lecturer doubted the state which the author mentioned. He notes that the sea cows population had already declined before the European fur traders settled there. Hence, it cannot be the reason that accounted for the extinction of the sea cow.
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Grammar and spelling errors:
Line 3, column 570, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... a fact, whales cannot exist currently. Lastly, the author posits that the last ...
^^^
Line 4, column 307, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'cows'' or 'cow's'?
Suggestion: cows'; cow's
...author mentioned. He notes that the sea cows population had already declined before ...
^^^^
Transition Words or Phrases used:
also, but, hence, however, if, lastly, moreover, second, secondly, so, still, while, to begin with
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 21.0 10.4613686534 201% => Less to be verbs wanted.
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 1.0 7.30242825607 14% => More conjunction wanted.
Relative clauses : 20.0 12.0772626932 166% => OK
Pronoun: 39.0 22.412803532 174% => Less pronouns wanted
Preposition: 43.0 30.3222958057 142% => OK
Nominalization: 11.0 5.01324503311 219% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1644.0 1373.03311258 120% => OK
No of words: 345.0 270.72406181 127% => OK
Chars per words: 4.7652173913 5.08290768461 94% => OK
Fourth root words length: 4.3097767484 4.04702891845 106% => OK
Word Length SD: 2.40171471336 2.5805825403 93% => OK
Unique words: 164.0 145.348785872 113% => OK
Unique words percentage: 0.475362318841 0.540411800872 88% => More unique words wanted or less content wanted.
syllable_count: 502.2 419.366225166 120% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 8.0 3.25607064018 246% => Less pronouns wanted as sentence beginning.
Article: 7.0 8.23620309051 85% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 18.0 13.0662251656 138% => OK
Sentence length: 19.0 21.2450331126 89% => OK
Sentence length SD: 38.4454479638 49.2860985944 78% => OK
Chars per sentence: 91.3333333333 110.228320801 83% => OK
Words per sentence: 19.1666666667 21.698381199 88% => OK
Discourse Markers: 5.44444444444 7.06452816374 77% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 7.0 4.45695364238 157% => OK
Sentences with neutral sentiment: 8.0 4.27373068433 187% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.233079709233 0.272083759551 86% => OK
Sentence topic coherence: 0.0845685854064 0.0996497079465 85% => OK
Sentence topic coherence SD: 0.0870345699282 0.0662205650399 131% => OK
Paragraph topic coherence: 0.153931895347 0.162205337803 95% => OK
Paragraph topic coherence SD: 0.0889120285169 0.0443174109184 201% => More connections among paragraphs wanted.
Essay readability:
automated_readability_index: 10.6 13.3589403974 79% => Automated_readability_index is low.
flesch_reading_ease: 60.65 53.8541721854 113% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.5 11.0289183223 86% => OK
coleman_liau_index: 10.39 12.2367328918 85% => OK
dale_chall_readability_score: 7.92 8.42419426049 94% => OK
difficult_words: 73.0 63.6247240618 115% => OK
linsear_write_formula: 13.0 10.7273730684 121% => OK
gunning_fog: 9.6 10.498013245 91% => OK
text_standard: 10.0 11.2008830022 89% => OK
What are above readability scores?
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Write the essay in 20 minutes.
Rates: 73.3333333333 out of 100
Scores by essay e-grader: 22.0 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.