The reading passage and listening are discussing two contradictory theories about declining of the population of sea otters in Alaskan coast. The reading passage says that the environmental pollution is the reason of the population decrease in sea otters. However, the lecturer casts doubt on reading passage by providing reasons that they show the predators are the reason of declining.
First of all, the reading passage says that the increasing chemicals in the water have decreased the amount of sea otters. However, the lecturer says that the predatory theory supports the decline of sea otters. As predators kill sea otters and eat them immediately, so there isn't any dead sea otters on the beach of Alaskan.
On the other hand, the reading passage claims that the other sea mammals such as seals and sea lines in the Alaskan coast also have decreased because of environmental pollution. However, the lecturer casts doubt on that view of reading passage by mentioning that the orcas are eating other mammals because of lack of whales in the Alaskan coast.
Finally, the reading passage says that uneven pattern shows that in the Alaskan coast the population of sea otters have decreased, while in other locations their population are stable. The lecturer believes that the uneven pattern supports predatory theory more than environmental pollution theory. He says that the orcas are large creatures that they don't have access to other shallow and rocky locations that the population of sea otters are stable, and they can access easily to Alaskan coast to kill and eat sea otters, and it is the reason of declining in population of sea otters.
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Grammar and spelling errors:
Line 3, column 277, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: isn't
...ters and eat them immediately, so there isnt any dead sea otters on the beach of Ala...
^^^^
Line 7, column 353, Rule ID: EN_CONTRACTION_SPELLING
Message: Possible spelling mistake found
Suggestion: don't
...the orcas are large creatures that they dont have access to other shallow and rocky ...
^^^^
Transition Words or Phrases used:
also, finally, first, however, so, while, such as, first of all, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 8.0 10.4613686534 76% => OK
Auxiliary verbs: 1.0 5.04856512141 20% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 20.0 22.412803532 89% => OK
Preposition: 34.0 30.3222958057 112% => OK
Nominalization: 9.0 5.01324503311 180% => OK
Performance on vocabulary words:
No of characters: 1387.0 1373.03311258 101% => OK
No of words: 272.0 270.72406181 100% => OK
Chars per words: 5.09926470588 5.08290768461 100% => OK
Fourth root words length: 4.06108636974 4.04702891845 100% => OK
Word Length SD: 2.57117276552 2.5805825403 100% => OK
Unique words: 106.0 145.348785872 73% => More unique words wanted.
Unique words percentage: 0.389705882353 0.540411800872 72% => More unique words wanted or less content wanted.
syllable_count: 432.0 419.366225166 103% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 9.0 8.23620309051 109% => OK
Subordination: 2.0 1.25165562914 160% => OK
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 11.0 13.0662251656 84% => Need more sentences. Double check the format of sentences, make sure there is a space between two sentences, or have enough periods. And also check the lengths of sentences, maybe they are too long.
Sentence length: 24.0 21.2450331126 113% => OK
Sentence length SD: 52.3121590404 49.2860985944 106% => OK
Chars per sentence: 126.090909091 110.228320801 114% => OK
Words per sentence: 24.7272727273 21.698381199 114% => OK
Discourse Markers: 7.45454545455 7.06452816374 106% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 2.0 4.19205298013 48% => 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: 2.0 4.27373068433 47% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.372554721337 0.272083759551 137% => OK
Sentence topic coherence: 0.176568831323 0.0996497079465 177% => OK
Sentence topic coherence SD: 0.0867328383706 0.0662205650399 131% => OK
Paragraph topic coherence: 0.262845080335 0.162205337803 162% => OK
Paragraph topic coherence SD: 0.0650222864564 0.0443174109184 147% => OK
Essay readability:
automated_readability_index: 15.0 13.3589403974 112% => OK
flesch_reading_ease: 47.12 53.8541721854 87% => OK
smog_index: 8.8 5.55761589404 158% => OK
flesch_kincaid_grade: 12.7 11.0289183223 115% => OK
coleman_liau_index: 12.6 12.2367328918 103% => OK
dale_chall_readability_score: 7.67 8.42419426049 91% => OK
difficult_words: 49.0 63.6247240618 77% => More difficult words wanted.
linsear_write_formula: 8.0 10.7273730684 75% => OK
gunning_fog: 11.6 10.498013245 110% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?
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Rates: 73.3333333333 out of 100
Scores by essay e-grader: 22.0 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.