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

The reading and the lecture are both about the mass-extinction event 200 million years ago. Scientists have many theories about this event. The author of the reading has three reasons for it. The lecturer also has three reasons that disagree with the author of the reading.

First, the author argues that one of the reasons that account for mass-extinction is declining sea levels. The article mentions that when sea level falls, the habitats of the ocean population and land species are destroyed. This specific argument is challenged by the lecturer. She claims that the falling of the sea levels is gradual. It takes a long time to fall completely. Hence, declining of sea level is not an accurate reason. To add more, the species in the shallow part have adapted to this event over a long period time.

Moreover, the writer suggests another reason and that is massive climate cooling by volcanoes. In the article, it is said that the volcanoes made enormous amounts of sulfur dioxide and it makes climate temperature low. The lecturer, however, rebuts this by mentioning that sulfur dioxide can cause the low temperature climate, however, So2 can stay in the atmosphere for a short period of time. Furthermore, So2 is mixed with water and can fall out as rain. Thus, this cannot be a solid reason for the extinction.

Lastly, the author posits that the other cause is the amount of soil and crushed rock caused by an asteroid strike. Moreover, it is stated in the article that an asteroid impacts at the end of the triassic period and it blocks the sunlight. In contrast, the lecturer’s position is people have not found any asteroid crater. In addition, the crashing of an asteroid happened a long time ago before the world in the triassic period. Thus, this is an impossible theory.

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Average: 6.5 (1 vote)
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Essays by the user:

Grammar and spelling errors:
Line 2, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...agree with the author of the reading. First, the author argues that one of the...
^^^
Line 4, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...to this event over a long period time. Moreover, the writer suggests another re...
^^^
Line 5, column 380, Rule ID: PERIOD_OF_TIME[1]
Message: Use simply 'period'.
Suggestion: period
... can stay in the atmosphere for a short period of time. Furthermore, So2 is mixed with water a...
^^^^^^^^^^^^^^
Line 6, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
... be a solid reason for the extinction. Lastly, the author posits that the other...
^^^
Line 7, column 407, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...appened a long time ago before the world in the triassic period. Thus, this is an...
^^
Line 8, column 1, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...d. Thus, this is an impossible theory.
^^^^^^^^^^^^^^^^^^

Transition Words or Phrases used:
also, but, first, furthermore, hence, however, if, lastly, moreover, so, thus, in addition, in contrast

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

Performance on Part of Speech:
To be verbs : 14.0 10.4613686534 134% => OK
Auxiliary verbs: 4.0 5.04856512141 79% => OK
Conjunction : 7.0 7.30242825607 96% => OK
Relative clauses : 11.0 12.0772626932 91% => OK
Pronoun: 23.0 22.412803532 103% => OK
Preposition: 33.0 30.3222958057 109% => OK
Nominalization: 7.0 5.01324503311 140% => OK

Performance on vocabulary words:
No of characters: 1508.0 1373.03311258 110% => OK
No of words: 306.0 270.72406181 113% => OK
Chars per words: 4.92810457516 5.08290768461 97% => OK
Fourth root words length: 4.18244613648 4.04702891845 103% => OK
Word Length SD: 2.57341269577 2.5805825403 100% => OK
Unique words: 159.0 145.348785872 109% => OK
Unique words percentage: 0.519607843137 0.540411800872 96% => OK
syllable_count: 456.3 419.366225166 109% => OK
avg_syllables_per_word: 1.5 1.55342163355 97% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 7.0 3.25607064018 215% => Less pronouns wanted as sentence beginning.
Article: 12.0 8.23620309051 146% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 4.0 2.5761589404 155% => OK

Performance on sentences:
How many sentences: 21.0 13.0662251656 161% => OK
Sentence length: 14.0 21.2450331126 66% => The Avg. Sentence Length is relatively short.
Sentence length SD: 34.7064136348 49.2860985944 70% => OK
Chars per sentence: 71.8095238095 110.228320801 65% => OK
Words per sentence: 14.5714285714 21.698381199 67% => OK
Discourse Markers: 4.90476190476 7.06452816374 69% => OK
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 6.0 4.19205298013 143% => OK
Sentences with positive sentiment : 0.0 4.33554083885 0% => More positive sentences wanted.
Sentences with negative sentiment : 10.0 4.45695364238 224% => Less negative sentences wanted.
Sentences with neutral sentiment: 11.0 4.27373068433 257% => Less facts, knowledge or examples wanted.
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.215979384618 0.272083759551 79% => OK
Sentence topic coherence: 0.0576970426056 0.0996497079465 58% => OK
Sentence topic coherence SD: 0.0749504139318 0.0662205650399 113% => OK
Paragraph topic coherence: 0.121409172219 0.162205337803 75% => OK
Paragraph topic coherence SD: 0.0533980780847 0.0443174109184 120% => OK

Essay readability:
automated_readability_index: 9.1 13.3589403974 68% => Automated_readability_index is low.
flesch_reading_ease: 65.73 53.8541721854 122% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 7.6 11.0289183223 69% => OK
coleman_liau_index: 10.72 12.2367328918 88% => OK
dale_chall_readability_score: 8.3 8.42419426049 99% => OK
difficult_words: 77.0 63.6247240618 121% => OK
linsear_write_formula: 5.5 10.7273730684 51% => Linsear_write_formula is low.
gunning_fog: 7.6 10.498013245 72% => OK
text_standard: 8.0 11.2008830022 71% => OK
What are above readability scores?

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Rates: 65.0 out of 100
Scores by essay e-grader: 19.5 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.