tpo 34 the reasons OF Steller's sea cow extinction
The material discusses the reasons of Steller's sea cow extinction. While the reading suggests three causes of this extinction, the listening challenges all these causes that outlined in the reading passage.
First, the author states that native Siberian overhunted sea cows because they were a good source of food in a harsh environment. On the other hand, the professor opposes this and points out that sea cows were a massive creature, one of them was nine-meter-long and ten tons weight. The lecturer adds that a couple of sea cows could feed Siberian people for a month. in addition to that, the Siberian population was not very large, so they did not need to hunt a lot of sea cows. The speaker says that native Siberian could not take sea cows to the point of extinction.
Second, the writer mentions that ecosystem disturbances caused the reduction of kelp which was the main food source of sea cows. On the contrary, the professor refutes that and posits that if the ecosystem changed, it might cause a decline in other marines, such as whales. The lecturer explains that there was not a report of whales' decline. According to the lecture, there was no indication of broadening ecosystem disturbances, so kelps were enough, and sea cows did not have any experience of food shortage.
Third, the reading cites that European fir traders had weapons that allowed them to hunt sea cows quickly, so they hunted the last sea cows. Conversely, the professor contradicts this and brings up that sea cows extinct soon after the European arrival. The lecturer adds that when European fur traders arrived, the sea cows were already declined. The sea cows started to decline a hundred years before Europeans' arrival. The professor concludes that it was supposed to be another reason that responsible for this decline.
| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2019-12-18 | Christine hanna | 80 | view |
| 2019-11-29 | nagy | 73 | view |
| 2019-10-24 | Christine hanna | 3 | view |
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Grammar and spelling errors:
Line 3, column 368, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: In
...could feed Siberian people for a month. in addition to that, the Siberian populati...
^^
Line 7, column 422, Rule ID: ENGLISH_WORD_REPEAT_BEGINNING_RULE
Message: Three successive sentences begin with the same word. Reword the sentence or use a thesaurus to find a synonym.
...hundred years before Europeans arrival. The professor concludes that it was suppose...
^^^
Transition Words or Phrases used:
conversely, first, if, second, so, third, while, in addition, such as, on the contrary, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 11.0 10.4613686534 105% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 5.0 7.30242825607 68% => OK
Relative clauses : 18.0 12.0772626932 149% => OK
Pronoun: 28.0 22.412803532 125% => Less pronouns wanted
Preposition: 28.0 30.3222958057 92% => OK
Nominalization: 9.0 5.01324503311 180% => OK
Performance on vocabulary words:
No of characters: 1515.0 1373.03311258 110% => OK
No of words: 305.0 270.72406181 113% => OK
Chars per words: 4.96721311475 5.08290768461 98% => OK
Fourth root words length: 4.17902490978 4.04702891845 103% => OK
Word Length SD: 2.60630785485 2.5805825403 101% => OK
Unique words: 157.0 145.348785872 108% => OK
Unique words percentage: 0.514754098361 0.540411800872 95% => OK
syllable_count: 456.3 419.366225166 109% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 16.0 8.23620309051 194% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 1.0 1.51434878587 66% => OK
Preposition: 4.0 2.5761589404 155% => OK
Performance on sentences:
How many sentences: 16.0 13.0662251656 122% => OK
Sentence length: 19.0 21.2450331126 89% => OK
Sentence length SD: 30.88935648 49.2860985944 63% => OK
Chars per sentence: 94.6875 110.228320801 86% => OK
Words per sentence: 19.0625 21.698381199 88% => OK
Discourse Markers: 6.5625 7.06452816374 93% => 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 : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 9.0 4.27373068433 211% => Less facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.551237915647 0.272083759551 203% => OK
Sentence topic coherence: 0.193200893298 0.0996497079465 194% => OK
Sentence topic coherence SD: 0.0900971026103 0.0662205650399 136% => OK
Paragraph topic coherence: 0.321933568368 0.162205337803 198% => OK
Paragraph topic coherence SD: 0.0654319015871 0.0443174109184 148% => OK
Essay readability:
automated_readability_index: 11.5 13.3589403974 86% => 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: 11.55 12.2367328918 94% => OK
dale_chall_readability_score: 8.2 8.42419426049 97% => OK
difficult_words: 70.0 63.6247240618 110% => OK
linsear_write_formula: 8.0 10.7273730684 75% => OK
gunning_fog: 9.6 10.498013245 91% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
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Rates: 80.0 out of 100
Scores by essay e-grader: 24.0 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.