Since, the sea otters play an significant ecological role in coastal ecosystem, the reduction in sea otters population has been critical issue. In the reading passage, it affirms that the possible reason of reduced number of otters is because of environmental pollution rather than predation. In contrast to it, the lecture advocates predation to be more reasonable for the reduction of sea mammals including sea otters.
Firstly, in the passage, it has explained that there are sources of pollution to nearer to the coastal regions such as oil rigs and other chemical pollution. These must have surged the level of chemicals in the water leading to the reduced number of sea otters. However, the lecture questions if pollution was the main reason behind the reduction then why their dead bodies were not found in the water. Therefore, this weakens the first theory.
Secondly, in the passage, it is explained that Ocra only hunts the larger sea mammals like whales so, there is no other guess that decrease in the population of sea otters along with other sea mammals like sea lion, seals etc is because of pollution. Nevertheless, the lecture sticks with predation describing disappearance of whales from the sea because of which ocras have to attack smaller sea mammals. This undermines the second theory of the passage.
Thirdly, in the passage, the ocean currents and other environmental factors are taken into account for the reduction of sea mammals. In the other hand, the lecture claims that the uneven pattern of sea mammals is due to ocra predation theory. As ocras are huge predators, they cannot survive in the shallow sea water. Thus, in the shallow sea, the population of sea mammals is constant. In the same way, in the deep sea, the population is highly decreased due to predation. Hence, this counters the third theory of the passage.
Thus, it is confirmed that the reduction of sea otters and sea mammals is because of predation rather than environmental pollution.
Grammar and spelling errors:
Line 1, column 28, Rule ID: EN_A_VS_AN
Message: Use 'a' instead of 'an' if the following word doesn't start with a vowel sound, e.g. 'a sentence', 'a university'
Suggestion: a
Since, the sea otters play an significant ecological role in coastal ...
^^
Line 1, column 102, Rule ID: POSSESIVE_APOSTROPHE[1]
Message: Possible typo: apostrophe is missing. Did you mean 'otters'' or 'otter's'?
Suggestion: otters'; otter's
...coastal ecosystem, the reduction in sea otters population has been critical issue. In ...
^^^^^^
Transition Words or Phrases used:
first, firstly, hence, however, if, nevertheless, second, secondly, so, then, therefore, third, thirdly, thus, in contrast, such as, in contrast to, in the same way
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 16.0 10.4613686534 153% => OK
Auxiliary verbs: 2.0 5.04856512141 40% => OK
Conjunction : 3.0 7.30242825607 41% => More conjunction wanted.
Relative clauses : 7.0 12.0772626932 58% => More relative clauses wanted.
Pronoun: 17.0 22.412803532 76% => OK
Preposition: 48.0 30.3222958057 158% => OK
Nominalization: 22.0 5.01324503311 439% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 1668.0 1373.03311258 121% => OK
No of words: 330.0 270.72406181 122% => OK
Chars per words: 5.05454545455 5.08290768461 99% => OK
Fourth root words length: 4.26214759535 4.04702891845 105% => OK
Word Length SD: 2.65032180938 2.5805825403 103% => OK
Unique words: 151.0 145.348785872 104% => OK
Unique words percentage: 0.457575757576 0.540411800872 85% => More unique words wanted or less content wanted.
syllable_count: 516.6 419.366225166 123% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 9.0 3.25607064018 276% => Less pronouns wanted as sentence beginning.
Article: 9.0 8.23620309051 109% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 9.0 2.5761589404 349% => Less preposition wanted as sentence beginnings.
Performance on sentences:
How many sentences: 17.0 13.0662251656 130% => OK
Sentence length: 19.0 21.2450331126 89% => OK
Sentence length SD: 50.4556401832 49.2860985944 102% => OK
Chars per sentence: 98.1176470588 110.228320801 89% => OK
Words per sentence: 19.4117647059 21.698381199 89% => OK
Discourse Markers: 9.64705882353 7.06452816374 137% => OK
Paragraphs: 5.0 4.09492273731 122% => OK
Language errors: 2.0 4.19205298013 48% => OK
Sentences with positive sentiment : 6.0 4.33554083885 138% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 7.0 4.27373068433 164% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.305046283491 0.272083759551 112% => OK
Sentence topic coherence: 0.110691511166 0.0996497079465 111% => OK
Sentence topic coherence SD: 0.0922124135418 0.0662205650399 139% => OK
Paragraph topic coherence: 0.203959999372 0.162205337803 126% => OK
Paragraph topic coherence SD: 0.075602538437 0.0443174109184 171% => OK
Essay readability:
automated_readability_index: 12.1 13.3589403974 91% => Automated_readability_index is low.
flesch_reading_ease: 52.19 53.8541721854 97% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 10.7 11.0289183223 97% => OK
coleman_liau_index: 12.01 12.2367328918 98% => OK
dale_chall_readability_score: 7.78 8.42419426049 92% => OK
difficult_words: 67.0 63.6247240618 105% => OK
linsear_write_formula: 11.5 10.7273730684 107% => OK
gunning_fog: 9.6 10.498013245 91% => OK
text_standard: 12.0 11.2008830022 107% => OK
What are above readability scores?
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Write the essay in 20 minutes.
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.