At the end of the Triassic period 200 million years ago there was a mass extinction event that caused the extinction of more than half of all living species It was this extinction event that allowed dinosaurs to become the dominant species for the next 14

The main idea of both the reading and the listening is about causes of mass extinction that occured 200 million years ago in Triassic Period. The author of the passage, by providing three theories, claims that the mentioned theories are the reasons that caused the living creatures to extinct. However, the lecturer refutes that and says that these theories may be plausible but not good reasons for the mass extinction for the following reasons.
First of all, the writer of the article brings about the decrease of the sea levels and fluctuations in Triassic Period, which lead to destruction of coastal and shallow ocean species and distrupting the available food chains. The professor, on the contrary, rejects that by saying that coastal and shallow ocean species can adapt gradual changes. These fluctuations happened for years and gradually, so these species could adapt to it. Consequently, there must be sudden change that caused the extinction.
Second of all, the writer of the text posits that massive cooling of the climate that caused by volcanoes release of so2 is responsible for the elimination of species. The speaker, on the other hand, rebuts this and explains that so2 remains in air in short periods and even it is still present in the air. Exessive so2 clears out from air by different processes like combining with air and rains.
Thirdly, the writer points out that asteroids are the reason of the extinction. Conversely, the professor refuse this notion too and says that the massive asteriods do not match with the time of the extinction and closest collision of massive rocks to that period is about 12 million years before extinction. Hence, asteroids can't be the reason of the extinction.

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Average: 7.1 (1 vote)
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Grammar and spelling errors:
Line 4, column 326, Rule ID: CANT[1]
Message: Did you mean 'can't' or 'cannot'?
Suggestion: can't; cannot
...ars before extinction. Hence, asteroids cant be the reason of the extinction.
^^^^

Transition Words or Phrases used:
but, consequently, conversely, first, hence, however, if, may, second, so, still, third, thirdly, in short, first of all, on the contrary, on the other hand

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

Performance on Part of Speech:
To be verbs : 9.0 10.4613686534 86% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 13.0 7.30242825607 178% => OK
Relative clauses : 15.0 12.0772626932 124% => OK
Pronoun: 21.0 22.412803532 94% => OK
Preposition: 41.0 30.3222958057 135% => OK
Nominalization: 9.0 5.01324503311 180% => OK

Performance on vocabulary words:
No of characters: 1437.0 1373.03311258 105% => OK
No of words: 285.0 270.72406181 105% => OK
Chars per words: 5.04210526316 5.08290768461 99% => OK
Fourth root words length: 4.10876417139 4.04702891845 102% => OK
Word Length SD: 2.58190306816 2.5805825403 100% => OK
Unique words: 151.0 145.348785872 104% => OK
Unique words percentage: 0.529824561404 0.540411800872 98% => OK
syllable_count: 415.8 419.366225166 99% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 3.25607064018 31% => OK
Article: 9.0 8.23620309051 109% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 3.0 2.5761589404 116% => OK

Performance on sentences:
How many sentences: 13.0 13.0662251656 99% => OK
Sentence length: 21.0 21.2450331126 99% => OK
Sentence length SD: 53.2396613293 49.2860985944 108% => OK
Chars per sentence: 110.538461538 110.228320801 100% => OK
Words per sentence: 21.9230769231 21.698381199 101% => OK
Discourse Markers: 12.0 7.06452816374 170% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 3.0 4.33554083885 69% => OK
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 6.0 4.27373068433 140% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.239699704093 0.272083759551 88% => OK
Sentence topic coherence: 0.0757950189354 0.0996497079465 76% => OK
Sentence topic coherence SD: 0.071998024531 0.0662205650399 109% => OK
Paragraph topic coherence: 0.132102911597 0.162205337803 81% => OK
Paragraph topic coherence SD: 0.0848815525418 0.0443174109184 192% => OK

Essay readability:
automated_readability_index: 13.3 13.3589403974 100% => OK
flesch_reading_ease: 58.62 53.8541721854 109% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 10.3 11.0289183223 93% => OK
coleman_liau_index: 11.95 12.2367328918 98% => OK
dale_chall_readability_score: 8.5 8.42419426049 101% => OK
difficult_words: 69.0 63.6247240618 108% => OK
linsear_write_formula: 12.5 10.7273730684 117% => OK
gunning_fog: 10.4 10.498013245 99% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?

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Rates: 71.6666666667 out of 100
Scores by essay e-grader: 21.5 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.