TPO 10 The sea otter is a small mammal that lives in waters along the western coast of North America from California to Alaska. When some sea otter populations off the Alaskan coast started rapidly declining a few years ago, it caused much concern because

In the set of material, both the reading and listening talk about the possible causes of decline sea otters. The reading claims that the environmental pollution and attack by predators are the reasons for decline sea otters. However, the lecturer refutes each of the points suggested in the reading passage.

First, the passage asserts that, the increased the level of chemicals in water induced the infection in sea otters and caused the rate of sea otters population down. In contrast, the lecturer opposes this point by logical thinking, if the chemical pollution caused the Alaskan coast polluted, then other than sea otters and entire ecosystem and all fish could have been infected and caused to death or endangered.

Secondly, the article posits that the entire ecosystem affected and were caused to declined because of environmental pollution. The orca, a large sea predatory whale is exception to this as they prefer to hunt larger prey. On the other hand, the lecturer points out that the whales disappeared because of the human and whales have changed their diet.

Finally, the reading says that, the otters populations declined rapidly in Alaskan region while at other locations they remained stable. So, the reading suggested that the ocean currents or other environmental factors have created uneven pattern of population along the coast. On the contrary, the lecturer argues this hypothesis, otters population have not declined in shallow, rocky regions and thus, uneven pattern of otters exist due to the location.

In conclusion, the lecturer casts doubt on all the claims and hypothesis presented by the author in the passage.

Votes
Average: 8.5 (1 vote)
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Grammar and spelling errors:
Line 3, column 143, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'otters'' or 'otter's'?
Suggestion: otters'; otter's
...n sea otters and caused the rate of sea otters population down. In contrast, the lectu...
^^^^^^

Transition Words or Phrases used:
finally, first, however, if, second, secondly, so, then, thus, while, in conclusion, in contrast, on the contrary, on the other hand

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

Performance on Part of Speech:
To be verbs : 4.0 10.4613686534 38% => More to be verbs wanted.
Auxiliary verbs: 1.0 5.04856512141 20% => OK
Conjunction : 12.0 7.30242825607 164% => OK
Relative clauses : 6.0 12.0772626932 50% => More relative clauses wanted.
Pronoun: 12.0 22.412803532 54% => OK
Preposition: 34.0 30.3222958057 112% => OK
Nominalization: 9.0 5.01324503311 180% => OK

Performance on vocabulary words:
No of characters: 1393.0 1373.03311258 101% => OK
No of words: 264.0 270.72406181 98% => OK
Chars per words: 5.27651515152 5.08290768461 104% => OK
Fourth root words length: 4.03089032464 4.04702891845 100% => OK
Word Length SD: 2.57662362891 2.5805825403 100% => OK
Unique words: 140.0 145.348785872 96% => OK
Unique words percentage: 0.530303030303 0.540411800872 98% => OK
syllable_count: 429.3 419.366225166 102% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 0.0 3.25607064018 0% => OK
Article: 14.0 8.23620309051 170% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 5.0 2.5761589404 194% => OK

Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 22.0 21.2450331126 104% => OK
Sentence length SD: 42.3224231348 49.2860985944 86% => OK
Chars per sentence: 116.083333333 110.228320801 105% => OK
Words per sentence: 22.0 21.698381199 101% => OK
Discourse Markers: 11.0 7.06452816374 156% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 4.0 4.33554083885 92% => OK
Sentences with negative sentiment : 5.0 4.45695364238 112% => OK
Sentences with neutral sentiment: 3.0 4.27373068433 70% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.458830476418 0.272083759551 169% => OK
Sentence topic coherence: 0.158691342924 0.0996497079465 159% => OK
Sentence topic coherence SD: 0.089150071398 0.0662205650399 135% => OK
Paragraph topic coherence: 0.215852427684 0.162205337803 133% => OK
Paragraph topic coherence SD: 0.128602328813 0.0443174109184 290% => More connections among paragraphs wanted.

Essay readability:
automated_readability_index: 14.4 13.3589403974 108% => OK
flesch_reading_ease: 49.15 53.8541721854 91% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 11.9 11.0289183223 108% => OK
coleman_liau_index: 13.34 12.2367328918 109% => OK
dale_chall_readability_score: 8.91 8.42419426049 106% => OK
difficult_words: 70.0 63.6247240618 110% => OK
linsear_write_formula: 10.5 10.7273730684 98% => OK
gunning_fog: 10.8 10.498013245 103% => OK
text_standard: 11.0 11.2008830022 98% => OK
What are above readability scores?

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Rates: 85.0 out of 100
Scores by essay e-grader: 25.5 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.