Humans arrived in the Kaliko Islands about 7 000 years ago and within 3 000 years most ofthe large mammal species that had lived in the forests of the Kaliko Islands had becomeextinct Y et humans cannot have been a factor in the species extinctions be

The writer of the passage concludes that humans have not been the main cause of large mammals’ extinction in the Kaliko Islands around 3000 years ago. The author’s conclusion is based on several assumptions. Firstly, there is no evidence that shows special contact between humans and the mammals in this site. Second, humans were not the hunter of large mammals because there have been only the bones of fish and no bones of the large mammals have discovered. Therefore, other environmental factors like climate change must have caused the mammal’s extinction. However, the assumptions in the passage are not convincing because of the following reasons.
Firstly, the writer claims that there is no evidence of any special contact between humans and large mammals in that site; therefore, humans could not be the cause of mammal’s extinctions. This assumption is not reasonable. It is possible that the contact between them were indirectly. For instance, humans might find the site a perfect site for living and civilization. As a result, they started to exploit the environmental sources to establish their territories; sources like trees, plants, and so on which were the main food source of large mammals. Therefore, they annihilated the habitat of mammals and maybe other species that caused mammals’ extinction long years after humans’ arrival.
Secondly, the writer provides that only fish bones are found in this site and no bones of large mammals are discovered. This assumption cannot reach us to the conclusion that humans have not played any role in mammals’ extinction. We know that some large mammals like polar bears eat fish and their lives are rely on this kind of marine animals. Fish bones strike this idea to our mind that humans might have been the hunter of fish which mammals needed them to survive. As a result of the significant decline in the amount of fish mammals have begun to extinct.
Lastly, it is assumed that other environmental factors were the main cause of mammals’ extinction. However, as it is clear, humans have caused environmental changes since they started to civilization. For instance, todays, humans cause the global warming which damages the Ozone layer. Global warming also causes the climate change. Therefore, humans have been the main damage for animals and plants and we can assume that the similar situation might occur in that sites around 3000 years ago.
To wrap it up, it is to state that the conclusion made in the argument is unlikely to come true unless the problems mentioned in the body paragraphs above are all address and ironed out. In other words, it is important to collect more evidence to evaluate the assumptions discussed above to decide if the conclusion in the passage is reasonable.

Votes
Average: 7.3 (2 votes)
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Grammar and spelling errors:
Line 3, column 310, Rule ID: BEEN_PART_AGREEMENT[1]
Message: Consider using a past participle here: 'relied'.
Suggestion: relied
...olar bears eat fish and their lives are rely on this kind of marine animals. Fish bo...
^^^^
Line 3, column 472, Rule ID: SENTENCE_FRAGMENT[1]
Message: “As” 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.
...h which mammals needed them to survive. As a result of the significant decline in ...
^^

Transition Words or Phrases used:
also, first, firstly, however, if, lastly, may, second, secondly, so, therefore, for instance, kind of, as a result, in other words

Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments

Performance on Part of Speech:
To be verbs : 25.0 19.6327345309 127% => OK
Auxiliary verbs: 7.0 12.9520958084 54% => OK
Conjunction : 11.0 11.1786427146 98% => OK
Relative clauses : 17.0 13.6137724551 125% => OK
Pronoun: 37.0 28.8173652695 128% => Less pronouns wanted
Preposition: 58.0 55.5748502994 104% => OK
Nominalization: 16.0 16.3942115768 98% => OK

Performance on vocabulary words:
No of characters: 2321.0 2260.96107784 103% => OK
No of words: 455.0 441.139720559 103% => OK
Chars per words: 5.1010989011 5.12650576532 100% => OK
Fourth root words length: 4.61852021839 4.56307096286 101% => OK
Word Length SD: 2.63819217723 2.78398813304 95% => OK
Unique words: 192.0 204.123752495 94% => More unique words wanted.
Unique words percentage: 0.421978021978 0.468620217663 90% => More unique words wanted or less content wanted.
syllable_count: 722.7 705.55239521 102% => OK
avg_syllables_per_word: 1.6 1.59920159681 100% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 9.0 4.96107784431 181% => OK
Article: 5.0 8.76447105788 57% => OK
Subordination: 3.0 2.70958083832 111% => OK
Conjunction: 1.0 1.67365269461 60% => OK
Preposition: 2.0 4.22255489022 47% => More preposition wanted as sentence beginning.

Performance on sentences:
How many sentences: 24.0 19.7664670659 121% => OK
Sentence length: 18.0 22.8473053892 79% => The Avg. Sentence Length is relatively short.
Sentence length SD: 42.7157920316 57.8364921388 74% => OK
Chars per sentence: 96.7083333333 119.503703932 81% => OK
Words per sentence: 18.9583333333 23.324526521 81% => OK
Discourse Markers: 5.45833333333 5.70786347227 96% => OK
Paragraphs: 5.0 5.15768463074 97% => OK
Language errors: 2.0 5.25449101796 38% => OK
Sentences with positive sentiment : 10.0 8.20758483034 122% => OK
Sentences with negative sentiment : 8.0 6.88822355289 116% => OK
Sentences with neutral sentiment: 6.0 4.67664670659 128% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.245815049135 0.218282227539 113% => OK
Sentence topic coherence: 0.072836466909 0.0743258471296 98% => OK
Sentence topic coherence SD: 0.0790020451515 0.0701772020484 113% => OK
Paragraph topic coherence: 0.136376479212 0.128457276422 106% => OK
Paragraph topic coherence SD: 0.0836731088561 0.0628817314937 133% => OK

Essay readability:
automated_readability_index: 12.1 14.3799401198 84% => Automated_readability_index is low.
flesch_reading_ease: 53.21 48.3550499002 110% => OK
smog_index: 3.1 7.1628742515 43% => Smog_index is low.
flesch_kincaid_grade: 10.3 12.197005988 84% => OK
coleman_liau_index: 12.3 12.5979740519 98% => OK
dale_chall_readability_score: 7.65 8.32208582834 92% => OK
difficult_words: 90.0 98.500998004 91% => OK
linsear_write_formula: 7.5 12.3882235529 61% => OK
gunning_fog: 9.2 11.1389221557 83% => OK
text_standard: 8.0 11.9071856287 67% => The average readability is low. Need to imporve the language.
What are above readability scores?

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Rates: 66.67 out of 100
Scores by essay e-grader: 4.0 Out of 6
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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.

Attribute Value Ideal
Final score: 4.0 out of 6
Category: Good Excellent
No. of Grammatical Errors: 6 2
No. of Spelling Errors: 1 2
No. of Sentences: 24 15
No. of Words: 455 350
No. of Characters: 2246 1500
No. of Different Words: 192 200
Fourth Root of Number of Words: 4.619 4.7
Average Word Length: 4.936 4.6
Word Length SD: 2.459 2.4
No. of Words greater than 5 chars: 166 100
No. of Words greater than 6 chars: 117 80
No. of Words greater than 7 chars: 57 40
No. of Words greater than 8 chars: 42 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 18.958 21.0
Sentence Length SD: 7.903 7.5
Use of Discourse Markers (%): 0.708 0.12
Sentence-Text Coherence: 0.312 0.35
Sentence-Para Coherence: 0.312 0.50
Sentence-Sentence Coherence: 0.099 0.07
Number of Paragraphs: 1 5