The lecturer disputes the author's suggested claims about the causes of mass extinction at the end of the Triassic period . She provides three concrete reasons to cast doubt about the authors claims.
First, according to the lecturer a massive amount of creature died because of the fluctuated decline in sea water levels. However, the lecturer find this idea debatable. She points out that such a decline in water level would not cause this massive extinction because it was not sudden. Theoretically speaking, a gradual decrease in water level is unlikely to cause such a massive extinction.
Second, the lecturer contradicts the fallacy of the passage volcano eruption in the Triassic period may have cause a massive extinction because of the decrease in atmospheric temperatures. She contends that the release sulfur dioxide was only temporary. Soon, this molecule was cleared from the air and the temperature went back to it's normal level.
Finally, the author argues that an asteroid collision with earth may have cause this massive extinction. However, the lecturer refutes these claims by stating that that scientist did not discover any crater on the surface of the earth. The only crater found was 12 million years before this event. thus this is not a valid explanation.
- Hail—pieces of ice that form and fall from clouds instead of snow or rain—has always been a problem for farmers in some areas of the United States. Hail pellets can fall with great force and destroy crops in the field. Over the last few decades, a met 76
- reading passage.题目原文：Hail—pieces of ice that form and fall from clouds instead of snow or rain—has always been a problem for farmers in some areas of the United States. Hail pellets can fall with great force and destroy crops in the field. O 80
- Modern transportation and shipping has made the world a better place to live. 76
- Agnostids were a group of marine animals that became extinct about 450 million years ago. Agnostid fossils can be found in rocks in many areas around the world. From the fossil remains, we know that agnostids were primitive arthropods-relatives of modern- 60
- Some people think that we learn our most important lessons in school. Others think that the knowledge we acquire outside is the most important. Which view do you agree with? Use specific reasons and examples to support your opinion. 70
Grammar and spelling errors:
Line 1, column 121, Rule ID: COMMA_PARENTHESIS_WHITESPACE
Message: Don't put a space before the full stop
Suggestion: .
...nction at the end of the Triassic period . She provides three concrete reasons to ...
^^
Line 7, column 299, Rule ID: UPPERCASE_SENTENCE_START
Message: This sentence does not start with an uppercase letter
Suggestion: Thus
...was 12 million years before this event. thus this is not a valid explanation.
^^^^
Line 7, column 299, Rule ID: SENT_START_CONJUNCTIVE_LINKING_ADVERB_COMMA[1]
Message: Did you forget a comma after a conjunctive/linking adverb?
Suggestion: thus,
...was 12 million years before this event. thus this is not a valid explanation.
^^^^
Transition Words or Phrases used:
finally, first, however, may, second, so, thus
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 6.0 10.4613686534 57% => More to be verbs wanted.
Auxiliary verbs: 3.0 5.04856512141 59% => OK
Conjunction : 1.0 7.30242825607 14% => More conjunction wanted.
Relative clauses : 5.0 12.0772626932 41% => More relative clauses wanted.
Pronoun: 17.0 22.412803532 76% => OK
Preposition: 25.0 30.3222958057 82% => OK
Nominalization: 7.0 5.01324503311 140% => OK
Performance on vocabulary words:
No of characters: 1082.0 1373.03311258 79% => OK
No of words: 207.0 270.72406181 76% => More content wanted.
Chars per words: 5.2270531401 5.08290768461 103% => OK
Fourth root words length: 3.79308509922 4.04702891845 94% => OK
Word Length SD: 2.6290473166 2.5805825403 102% => OK
Unique words: 119.0 145.348785872 82% => More unique words wanted.
Unique words percentage: 0.574879227053 0.540411800872 106% => OK
syllable_count: 334.8 419.366225166 80% => OK
avg_syllables_per_word: 1.6 1.55342163355 103% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 4.0 3.25607064018 123% => OK
Article: 7.0 8.23620309051 85% => OK
Subordination: 0.0 1.25165562914 0% => More adverbial clause wanted.
Conjunction: 0.0 1.51434878587 0% => OK
Preposition: 1.0 2.5761589404 39% => More preposition wanted as sentence beginning.
Performance on sentences:
How many sentences: 13.0 13.0662251656 99% => OK
Sentence length: 15.0 21.2450331126 71% => The Avg. Sentence Length is relatively short.
Sentence length SD: 39.2396671659 49.2860985944 80% => OK
Chars per sentence: 83.2307692308 110.228320801 76% => OK
Words per sentence: 15.9230769231 21.698381199 73% => OK
Discourse Markers: 3.53846153846 7.06452816374 50% => More transition words/phrases wanted.
Paragraphs: 4.0 4.09492273731 98% => OK
Language errors: 3.0 4.19205298013 72% => OK
Sentences with positive sentiment : 1.0 4.33554083885 23% => More positive sentences wanted.
Sentences with negative sentiment : 5.0 4.45695364238 112% => 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: 0.228704724458 0.272083759551 84% => OK
Sentence topic coherence: 0.0802725363139 0.0996497079465 81% => OK
Sentence topic coherence SD: 0.0817981745647 0.0662205650399 124% => OK
Paragraph topic coherence: 0.137189063933 0.162205337803 85% => OK
Paragraph topic coherence SD: 0.0269566067448 0.0443174109184 61% => OK
Essay readability:
automated_readability_index: 11.2 13.3589403974 84% => Automated_readability_index is low.
flesch_reading_ease: 56.25 53.8541721854 104% => OK
smog_index: 3.1 5.55761589404 56% => Smog_index is low.
flesch_kincaid_grade: 9.1 11.0289183223 83% => OK
coleman_liau_index: 12.76 12.2367328918 104% => OK
dale_chall_readability_score: 8.58 8.42419426049 102% => OK
difficult_words: 55.0 63.6247240618 86% => OK
linsear_write_formula: 6.5 10.7273730684 61% => OK
gunning_fog: 8.0 10.498013245 76% => OK
text_standard: 9.0 11.2008830022 80% => OK
What are above readability scores?
---------------------
Rates: 60.0 out of 100
Scores by essay e-grader: 18.0 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.