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 145 million years. We do not know exactly what happened that eliminated so many species in a relatively short period of time, but there are several possible explanations.One theory involves the decline of sea levels. Near the end of the Triassic period, sea levels were fluctuating. When sea levels fall, the habitats for ocean populations that live in the shallows and land species that live on the coast are destroyed. The destruction of coastal and shallow-ocean species would have had a profound effect on food chains worldwide, leading to mass extinctions.Another theory involves massive climate cooling. The end of the Triassic period was marked by widespread volcanic activity. The volcanoes released large amounts of sulfur dioxide (SO2). A rise in atmospheric SO2 is known to cause a lowering in global temperatures. Such climate change could have devastated many species and led to the extinctions.The third theory involves an asteroid strike. Asteroids (objects from outer space) occasionally collide with Earth. When an asteroid hits Earth’s surface, it often displaces large amounts of soil and crushed rock, leaving behind a depression, or crater. The displaced debris is thrown up into the atmosphere where it can block out sunlight for many months or even a few years. A sufficiently massive asteroid impact at the end of the Triassic period may have blocked sunlight long enough for most plants to die and many animal species to then starve..
Word Count：360总耗时:20m2s 查看题目讨论
In this set of materials, the reading and the lecture both discus whether or not certain reasons and explination are suitable to adress the extinaction of species at the end of triassic era. While the reading states that even if there are not obsolute evidence about what happened then, but there are convinced explination for this process. However, the lecture refutes this, by saying that although some theories are seems possible but the explination are not convincing and spposes each and every reasons stated by the writer.
First and foremost, the reading claims that the reduction in the sea level have a dramatic effect because it destroy the habitats at shallow and coastal land. Eventually, this will cause reduction of food and later, extinction. Onthe contrary, the lecture argues that the fluctuation of seal level is not a good explination. The porfessor adds that the process of sea level declined happened quite gradually for several million years and the species get adapted to it. Indeed, in order to extinction to happened, needs sudden effect to have its negative impact.
Word Count：360总耗时:20m2s 查看题目讨论
In this set of materials, the reading and the lecture both discus whether or not certain reasons and explination are suitable to adress the extinaction of species at the end of triassic era. While the reading states that even if there are not obsolute evidence about what happened then, but there are convinced explination for this process. However, the lecture refutes this, by saying that although some theories are seems possible but the explination are not convincing and spposes each and every reasons stated by the writer.
First and foremost, the reading claims that the reduction in the sea level have a dramatic effect because it destroy the habitats at shallow and coastal land. Eventually, this will cause reduction of food and later, extinction. Onthe contrary, the lecture argues that the fluctuation of seal level is not a good explination. The porfessor adds that the process of sea level declined happened quite gradually for several million years and the species get adapted to it. Indeed, in order to extinction to happened, needs sudden effect to have its negative impact.
Secondly, the reading makes the argument that one of the reasons is the climate cooling. The writer explains that the volcanic activity cause increase of sulpheric dioxide in the atmosphere and reduce the temrature wich cause extinction. On the other hand, the lecture couters this claim, by saying that this is true if only the so2 stayat atmosphere for a short period. Fyrthermore, the professor clears that the access cleared out from atmosphere because it combine with water and full as rain. Moreover, even if the volcanic activity stay longer, the so2 will disappear and never cause the extinction.
Lastly, the readind asserts that an asteroid cause the extinction because it when crash with the earth it will cause a depression in the soil or crater and the smoke of the result of it will prevent the sun light to reach the earth. Nevertheless, the lecture refutes this by emphasizes that no crater dated to this period because the one ehich dated is belong to the period of 12 million yearsago and it is too long time to cause the extinction.
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| Post date | Users | Rates | Link to Content |
|---|---|---|---|
| 2020-01-17 | nusybah | 80 | view |
| 2019-11-14 | M.S 2019 | 76 | view |
| 2019-10-24 | p0uya | 65 | view |
| 2019-10-24 | Seema Modak | 71 | view |
| 2019-10-08 | mahan vahab kashi | 80 | view |
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Grammar and spelling errors:
Line 2, column 67, Rule ID: WHETHER[7]
Message: Perhaps you can shorten this phrase to just 'whether'. It is correct though if you mean 'regardless of whether'.
Suggestion: whether
...the reading and the lecture both discus whether or not certain reasons and explination are sui...
^^^^^^^^^^^^^^
Line 5, column 110, Rule ID: IT_VBZ[1]
Message: Did you mean 'destroys'?
Suggestion: destroys
...level have a dramatic effect because it destroy the habitats at shallow and coastal lan...
^^^^^^^
Line 7, column 67, Rule ID: WHETHER[7]
Message: Perhaps you can shorten this phrase to just 'whether'. It is correct though if you mean 'regardless of whether'.
Suggestion: whether
...the reading and the lecture both discus whether or not certain reasons and explination are sui...
^^^^^^^^^^^^^^
Line 10, column 110, Rule ID: IT_VBZ[1]
Message: Did you mean 'destroys'?
Suggestion: destroys
...level have a dramatic effect because it destroy the habitats at shallow and coastal lan...
^^^^^^^
Line 12, column 351, Rule ID: WHITESPACE_RULE
Message: Possible typo: you repeated a whitespace
Suggestion:
...s true if only the so2 stayat atmosphere for a short period. Fyrthermore, the pro...
^^
Line 12, column 462, Rule ID: IT_VBZ[1]
Message: Did you mean 'combines'?
Suggestion: combines
... cleared out from atmosphere because it combine with water and full as rain. Moreover, ...
^^^^^^^
Line 14, column 354, Rule ID: BEEN_PART_AGREEMENT[1]
Message: Consider using a past participle here: 'belonged'.
Suggestion: belonged
...s period because the one ehich dated is belong to the period of 12 million yearsago an...
^^^^^^
Line 14, column 447, Rule ID: COMMA_PARENTHESIS_WHITESPACE
Message: Don't put a space before the full stop
Suggestion: .
... too long time to cause the extinction. .
^^
Transition Words or Phrases used:
but, first, however, if, lastly, moreover, nevertheless, second, secondly, so, then, while, on the other hand
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 16.0 10.4613686534 153% => OK
Auxiliary verbs: 5.0 5.04856512141 99% => OK
Conjunction : 28.0 7.30242825607 383% => Less conjunction wanted
Relative clauses : 17.0 12.0772626932 141% => OK
Pronoun: 39.0 22.412803532 174% => Less pronouns wanted
Preposition: 56.0 30.3222958057 185% => OK
Nominalization: 25.0 5.01324503311 499% => Less nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 2821.0 1373.03311258 205% => Less number of characters wanted.
No of words: 545.0 270.72406181 201% => Less content wanted.
Chars per words: 5.17614678899 5.08290768461 102% => OK
Fourth root words length: 4.83169070408 4.04702891845 119% => OK
Word Length SD: 2.9452218029 2.5805825403 114% => OK
Unique words: 191.0 145.348785872 131% => OK
Unique words percentage: 0.350458715596 0.540411800872 65% => More unique words wanted or less content wanted.
syllable_count: 841.5 419.366225166 201% => syllable counts are too long.
avg_syllables_per_word: 1.5 1.55342163355 97% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 3.25607064018 61% => OK
Article: 17.0 8.23620309051 206% => Less articles wanted as sentence beginning.
Subordination: 3.0 1.25165562914 240% => Less adverbial clause wanted.
Conjunction: 2.0 1.51434878587 132% => OK
Preposition: 8.0 2.5761589404 311% => Less preposition wanted as sentence beginnings.
Performance on sentences:
How many sentences: 23.0 13.0662251656 176% => OK
Sentence length: 23.0 21.2450331126 108% => OK
Sentence length SD: 52.0403725781 49.2860985944 106% => OK
Chars per sentence: 122.652173913 110.228320801 111% => OK
Words per sentence: 23.6956521739 21.698381199 109% => OK
Discourse Markers: 4.73913043478 7.06452816374 67% => OK
Paragraphs: 8.0 4.09492273731 195% => Less paragraphs wanted.
Language errors: 8.0 4.19205298013 191% => OK
Sentences with positive sentiment : 5.0 4.33554083885 115% => OK
Sentences with negative sentiment : 14.0 4.45695364238 314% => Less negative sentences wanted.
Sentences with neutral sentiment: 4.0 4.27373068433 94% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.155386506951 0.272083759551 57% => OK
Sentence topic coherence: 0.0482978806637 0.0996497079465 48% => OK
Sentence topic coherence SD: 0.033565058555 0.0662205650399 51% => OK
Paragraph topic coherence: 0.0688356266082 0.162205337803 42% => OK
Paragraph topic coherence SD: 0.0431487388784 0.0443174109184 97% => OK
Essay readability:
automated_readability_index: 14.8 13.3589403974 111% => OK
flesch_reading_ease: 56.59 53.8541721854 105% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 11.1 11.0289183223 101% => OK
coleman_liau_index: 13.06 12.2367328918 107% => OK
dale_chall_readability_score: 7.38 8.42419426049 88% => OK
difficult_words: 90.0 63.6247240618 141% => OK
linsear_write_formula: 13.5 10.7273730684 126% => OK
gunning_fog: 11.2 10.498013245 107% => OK
text_standard: 14.0 11.2008830022 125% => OK
What are above readability scores?
---------------------
Write the essay in 20 minutes.
Maximum four paragraphs wanted.
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.