The reading passage proposes three theories to explain the mass extinction which happened at the end of the Triassic period 200 million years ago. However, the professor thinks that the three theories are not good enough to explain the extinction and points out their limitations.
The first theory points out that the decline of sea level may destroyed the ocean species that lived in the shallows and land species that lived on the coast, which broke the food chain and resulted in mass extinctions. But the professor argues against it by saying that these species are able to adapt to gradual changes of the environment. Since the sea level has changed gradually through millions of years, this is not the reason for mass extinctions.
The second theory thinks that the sulfur dioxide released by the volcanoes caused massive climate cooling, which led to mass extinctions. But the professor says that sulfur dioxide will combine with water and falls down as rain. It only takes a few years for extra sulfur dioxide in the climate to fall down as rain. It is impossible for sulfur dioxide to cause such mass extinctions.
The third theory suggests that asteroid strike may be a possible explanation because the displaced debris is thrown up into the atmosphere and block out sunlight for many months or even longer, which makes the plants die and animal species starve. But the professor points out that the crater they found was 12 million years earlier than mass extinctions. This theory can't explain the time of mass extinctions.
Grammar and spelling errors:
Line 7, column 369, Rule ID: CANT[1]
Message: Did you mean 'can't' or 'cannot'?
Suggestion: can't; cannot
...lier than mass extinctions. This theory cant explain the time of mass extinctions. ...
^^^^
Transition Words or Phrases used:
but, first, however, may, second, so, third
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 7.0 10.4613686534 67% => OK
Auxiliary verbs: 3.0 5.04856512141 59% => OK
Conjunction : 10.0 7.30242825607 137% => OK
Relative clauses : 13.0 12.0772626932 108% => OK
Pronoun: 17.0 22.412803532 76% => OK
Preposition: 31.0 30.3222958057 102% => OK
Nominalization: 4.0 5.01324503311 80% => OK
Performance on vocabulary words:
No of characters: 1289.0 1373.03311258 94% => OK
No of words: 258.0 270.72406181 95% => OK
Chars per words: 4.99612403101 5.08290768461 98% => OK
Fourth root words length: 4.00778971557 4.04702891845 99% => OK
Word Length SD: 2.43371657833 2.5805825403 94% => OK
Unique words: 140.0 145.348785872 96% => OK
Unique words percentage: 0.542635658915 0.540411800872 100% => OK
syllable_count: 364.5 419.366225166 87% => OK
avg_syllables_per_word: 1.4 1.55342163355 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 5.0 8.23620309051 61% => OK
Subordination: 1.0 1.25165562914 80% => OK
Conjunction: 3.0 1.51434878587 198% => OK
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 12.0 13.0662251656 92% => OK
Sentence length: 21.0 21.2450331126 99% => OK
Sentence length SD: 54.6887023677 49.2860985944 111% => OK
Chars per sentence: 107.416666667 110.228320801 97% => OK
Words per sentence: 21.5 21.698381199 99% => OK
Discourse Markers: 3.58333333333 7.06452816374 51% => More transition words/phrases wanted.
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 1.0 4.19205298013 24% => OK
Sentences with positive sentiment : 0.0 4.33554083885 0% => More positive sentences wanted.
Sentences with negative sentiment : 4.0 4.45695364238 90% => OK
Sentences with neutral sentiment: 8.0 4.27373068433 187% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.21548731597 0.272083759551 79% => OK
Sentence topic coherence: 0.0833195856888 0.0996497079465 84% => OK
Sentence topic coherence SD: 0.0744723286978 0.0662205650399 112% => OK
Paragraph topic coherence: 0.130231641618 0.162205337803 80% => OK
Paragraph topic coherence SD: 0.0634671429364 0.0443174109184 143% => OK
Essay readability:
automated_readability_index: 12.9 13.3589403974 97% => OK
flesch_reading_ease: 67.08 53.8541721854 125% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.1 11.0289183223 83% => OK
coleman_liau_index: 11.72 12.2367328918 96% => OK
dale_chall_readability_score: 7.55 8.42419426049 90% => OK
difficult_words: 47.0 63.6247240618 74% => More difficult words wanted.
linsear_write_formula: 13.0 10.7273730684 121% => OK
gunning_fog: 10.4 10.498013245 99% => OK
text_standard: 13.0 11.2008830022 116% => OK
What are above readability scores?
---------------------
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.