The reading claims that a huge marine mammal which lived in the water around Bering Island off the coast of Siberia suddenly became extinct in 1768. The main reasons for the extinction are vague. The author provides three theories about the cause of the extinction. However, the lecturer finds all the ideas dubious and presents some evidence to refute them all.
The author argues that groups of native Siberian people may have over haunted sea cow. They were an awesome source of food in harsh environment after hundreds of years of too much hunting the numbers of sea cow suddenly extinct. Conversely, the lecturer brings up the idea that sea cows creatures are really massive, which were normally 9-meter long and 10-tons, small part of sea cows are enough for month food supply, and the population of native Siberian people was not large. So, they didn’t need to over hunt. This assumes is irreparable.
Furthermore, the reading passage holds the view that extinct sea cows caused by ecosystem disturbances. Sea cows depend on Kelp, but before 1768, Kelp population respond to ecological decreased. It may have caused of extincted. On the contrary, the professor underlines the fact that if ecosystem disturbances realy happened before1768, it wouldn’t just effected on Kelp but also other part of ecosystems, like decline in other marine animals such whales. How ever, there wasn’t any report of a decrease of the number of whales at that time. So, food shortage could not be caused of sea cows extinction.
Finally, the reading asserts that European fur trade was the main cause of extinction. Possessed weapons made an opportunity to quickly kill a large number of animals. In contrast, the speaker dismisses this issue due to the fact that most seem extinction occurred before European arrived to the island. So, these people could not be a main cause of the extinction of sea cow.
- TPO 30 Integrated Writing Task 75
- Some people believe that spending time away from people we care about helps us improve our relationship with them because being away from these people makes us realize how important they are to us Other people believe that to improve our relationships wit 42
- Some people like to buy and eat their meals at restaurants frequently while others like to do this at home. Which do you prefer? Why? 90
- if you want to recommend a way to reduce living expenses for your friend which of the following will you choose Why 1 Find a roommate to share a room 2 Do not buy the latest mobile phone Buy new technological devices less frequently 3 Buy cheap foods and 55
- Do you agree or disagree with the following statement The most important ways to improve the people s health is to clean the environment 95
Grammar and spelling errors:
Line 1, column 197, 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.
...n reasons for the extinction are vague. The author provides three theories about th...
^^^
Line 5, column 462, Rule ID: HOW_EVER[1]
Message: Did you mean 'however'?
Suggestion: However
...ne in other marine animals such whales. How ever, there wasn't any report of a decr...
^^^^^^^^
Line 8, column 142, Rule ID: LARGE_NUMBER_OF[1]
Message: Specify a number, remove phrase, or simply use 'many' or 'numerous'
Suggestion: many; numerous
...ons made an opportunity to quickly kill a large number of animals. In contrast, the speaker dismi...
^^^^^^^^^^^^^^^^^
Transition Words or Phrases used:
also, but, conversely, finally, furthermore, however, if, may, really, so, in contrast, on the contrary
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 10.0 10.4613686534 96% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 5.0 7.30242825607 68% => OK
Relative clauses : 10.0 12.0772626932 83% => OK
Pronoun: 16.0 22.412803532 71% => OK
Preposition: 45.0 30.3222958057 148% => OK
Nominalization: 10.0 5.01324503311 199% => OK
Performance on vocabulary words:
No of characters: 1605.0 1373.03311258 117% => OK
No of words: 316.0 270.72406181 117% => OK
Chars per words: 5.07911392405 5.08290768461 100% => OK
Fourth root words length: 4.21620550194 4.04702891845 104% => OK
Word Length SD: 2.58821876625 2.5805825403 100% => OK
Unique words: 185.0 145.348785872 127% => OK
Unique words percentage: 0.585443037975 0.540411800872 108% => OK
syllable_count: 491.4 419.366225166 117% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => 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: 2.0 1.51434878587 132% => OK
Preposition: 3.0 2.5761589404 116% => OK
Performance on sentences:
How many sentences: 19.0 13.0662251656 145% => OK
Sentence length: 16.0 21.2450331126 75% => The Avg. Sentence Length is relatively short.
Sentence length SD: 58.8702973609 49.2860985944 119% => OK
Chars per sentence: 84.4736842105 110.228320801 77% => OK
Words per sentence: 16.6315789474 21.698381199 77% => OK
Discourse Markers: 5.42105263158 7.06452816374 77% => 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 : 6.0 4.45695364238 135% => 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: 0.608435315871 0.272083759551 224% => OK
Sentence topic coherence: 0.170705368006 0.0996497079465 171% => OK
Sentence topic coherence SD: 0.120991605886 0.0662205650399 183% => OK
Paragraph topic coherence: 0.333387917264 0.162205337803 206% => OK
Paragraph topic coherence SD: 0.0786698687421 0.0443174109184 178% => OK
Essay readability:
automated_readability_index: 10.8 13.3589403974 81% => Automated_readability_index is low.
flesch_reading_ease: 55.24 53.8541721854 103% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.5 11.0289183223 86% => OK
coleman_liau_index: 11.89 12.2367328918 97% => OK
dale_chall_readability_score: 8.33 8.42419426049 99% => OK
difficult_words: 78.0 63.6247240618 123% => OK
linsear_write_formula: 7.5 10.7273730684 70% => OK
gunning_fog: 8.4 10.498013245 80% => OK
text_standard: 8.0 11.2008830022 71% => OK
What are above readability scores?
---------------------
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.