The passage tells that the reducing population of the Sea otters in Alaskan coast is because of the increased environmental pollution. However, the speaker is not in favor of this notion, he believes that the Orcus whale is solely responsible for it and presents the following evidences to prove his point.
First, the speaker refutes the point mentioned in the reading that the Sea otters are declining in number due to environmental pollution such as oil rigs and harmful chemicals from the industries. He says that if the Sea otters were dying due to pollution then there should be the relics of then on the sea shore. On the other hand, absence of dead bodies is a sign that some predator is hunting and eating them immediately.
Second, The author states that the pollution affects the entire ecosystem, thus explain the reduction in the population of seals and sea lions as well. Conversely, the lecturer points out that though the Orca whales usually feed on other whales but as the population of these whales have decreased due to human hunting. This led the Orca whale to change its eating habits; this resulted in hunting of other sea mammals such as seals, sea otters and sea lions etc.
Last but not the least; the passage says that the uneven pattern caused by ocean currents or other environmental factors suggest the uneven pattern of decline in the population of sea otter. The professor rebuts this idea and contraindicates it by explaining further. He narrates that the Orca whales cannot survive or hunt in shallow water. Therefore, the places where water is shallow the population of sea otter is not reducing as compared to the other areas where Orca whales are capable of killing them. Thus, the lecture has opposed all three theories.
Grammar and spelling errors:
Line 4, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...s hunting and eating them immediately. Second, The author states that the pollu...
^^^^^
Line 5, column 464, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... as seals, sea otters and sea lions etc. Last but not the least; the passage says...
^^^^^
Line 8, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...cture has opposed all three theories.
^^^^
Discourse Markers used:
['but', 'conversely', 'first', 'however', 'if', 'second', 'so', 'then', 'therefore', 'thus', 'well', 'such as', 'on the other hand']
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance in Part of Speech:
Nouns: 0.269938650307 0.261695866417 103% => OK
Verbs: 0.150306748466 0.158904122519 95% => OK
Adjectives: 0.0858895705521 0.0723426182421 119% => OK
Adverbs: 0.0490797546012 0.0435111971325 113% => OK
Pronouns: 0.0276073619632 0.0277247811725 100% => OK
Prepositions: 0.134969325153 0.128828473217 105% => OK
Participles: 0.0460122699387 0.0370669169778 124% => OK
Conjunctions: 2.55098020376 2.5805825403 99% => OK
Infinitives: 0.0184049079755 0.0208969081088 88% => OK
Particles: 0.00306748466258 0.00154638098197 198% => OK
Determiners: 0.134969325153 0.128158765124 105% => OK
Modal_auxiliary: 0.00613496932515 0.0158828679856 39% => OK
WH_determiners: 0.00613496932515 0.0114777025283 53% => OK
Vocabulary words and sentences:
No of characters: 1774.0 1645.83664459 108% => OK
No of words: 300.0 271.125827815 111% => OK
Chars per words: 5.91333333333 6.08160592843 97% => OK
Fourth root words length: 4.16179145029 4.04852973271 103% => OK
words length more than 5 chars: 0.363333333333 0.374372842146 97% => OK
words length more than 6 chars: 0.246666666667 0.287516216867 86% => OK
words length more than 7 chars: 0.143333333333 0.187439937562 76% => OK
words length more than 8 chars: 0.1 0.113142543107 88% => OK
Word Length SD: 2.55098020376 2.5805825403 99% => OK
Unique words: 158.0 145.348785872 109% => OK
Unique words percentage: 0.526666666667 0.539623497131 98% => OK
Word variations: 53.5401470475 53.8517498576 99% => OK
How many sentences: 13.0 13.0529801325 100% => OK
Sentence length: 23.0769230769 21.7502111507 106% => OK
Sentence length SD: 43.7626735659 49.3711431718 89% => OK
Chars per sentence: 136.461538462 132.220823453 103% => OK
Words per sentence: 23.0769230769 21.7502111507 106% => OK
Discourse Markers: 1.0 0.878197800319 114% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 3.0 3.39072847682 88% => OK
Readability: 47.7435897436 50.5018328374 95% => OK
Elegance: 1.98648648649 1.90840788429 104% => OK
Coherence and Cohesion:
Essay topic to essay body coherence: 0.733867122959 0.549887131256 133% => OK
Sentence sentence coherence: 0.127200645353 0.142949733639 89% => OK
Sentence sentence coherence SD: 0.0676475318864 0.0787303798458 86% => OK
Sentence paragraph coherence: 0.629666511992 0.631733273073 100% => OK
Sentence paragraph coherence SD: 0.162654709998 0.139662658121 116% => OK
Sentence topic coherence: 0.375768965349 0.266732575781 141% => OK
Sentence topic coherence SD: 0.148769656761 0.103435571967 144% => OK
Paragraph paragraph coherence: 0.560700425987 0.414875509568 135% => OK
Paragraph paragraph coherence SD: 0.0115543235739 0.0530846634433 22% => OK
Paragraph topic coherence: 0.584899126218 0.40443939384 145% => OK
Paragraph topic coherence SD: 0.0166866897107 0.0528353158467 32% => The ideas may be duplicated in paragraphs.
Task Achievement:
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 2.0 4.45695364238 45% => OK
Sentences with neutral sentiment: 7.0 4.26048565121 164% => OK
Positive topic words: 3.0 3.49668874172 86% => OK
Negative topic words: 1.0 3.62251655629 28% => More negative topic words wanted.
Neutral topic words: 6.0 3.1766004415 189% => OK
Total topic words: 10.0 10.2958057395 97% => OK
What are sentences with positive/Negative/neutral sentiment?
---------------------
Rates: 86.6666666667 out of 100
Scores by essay e-grader: 26.0 Out of 30
---------------------
Note: This is not the final score. 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.