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The passage describes the possible causes of the decline in sea otter population along the Alaskan coast; a small aquatic mammal which is mostly found on the western coast of North America extending from California to North America. According to the passage, the main reason for the decline in otter population was due to pollution. But the lecturer refuses to accept pollution as the reason for the possible decline in otter population and states that predation was the main reason for the decline in otters and gives plausible explanations to support her theory.

Firstly, the passage says that p...

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Average: 9.5 (2 votes)
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Sentence: This had led the ocra to chage it's dietary habits and look for smaller mammals such as sea otters and sea lions.
Error: chage Suggestion: No alternate word

Sentence: Hence the lecturer gives various resons to prove that predation was the main cause of the decline in otter population along the Alaskan coast opposing the view in the passage which stated that pollution was the most plausible explanation for the decrease in the otter population.
Error: resons Suggestion: No alternate word
Error: predation Suggestion: No alternate word

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Attribute Value Ideal
Score: 27 in 30
Category: Excellent Excellent
No. of Grammatical Errors: 0 2
No. of Spelling Errors: 3 2
No. of Sentences: 12 9
No. of Words: 355 250
No. of Characters: 1731 1200
No. of Different Words: 157 120
Fourth Root of Number of Words: 4.341 4.7
Average Word Length: 4.876 4.6
Word Length SD: 2.223 2.4
No. of Words greater than 5 chars: 119 80
No. of Words greater than 6 chars: 83 60
No. of Words greater than 7 chars: 49 40
No. of Words greater than 8 chars: 32 20
Use of Passive Voice (%): 0 0
Avg. Sentence Length: 29.583 21.0
Sentence Length SD: 10.882 7.5
Use of Discourse Markers (%): 0.583 0.12
Sentence-Text Coherence: 0.435 0.35
Sentence-Para Coherence: 0.717 0.50
Sentence-Sentence Coherence: 0.218 0.07
Number of Paragraphs: 5 4