Two line graphs illustrate the area of ozone layer hole in Antarctic and the emission of three types of ozone harming-gases in the 20 years period.
Overall, the first graph had an upward trend, except a small drop in 1995. In the second graph, CFC 12 and N20 similarly had an upward trend while the third factor’s trend was downward.
Regarding the first chart, it quadrupled from 400 in 1980 to 4000 thousand square kilometer in 2000. The number grows gradually to 2000 thousand square km in 1990, then enhanced more significantly to the peak after decreasing slightly to 1500 in 5 years.
Concerning the remained chart, the production of CFC-11 was the most remarkable trend: It consecutively accounted for the highest number in the first five years, then declined dramatically about seven times to become the lowest number in the graph from 1995. By contrast, the usage of the CFC-12 was nearly doubled, from 13 million tones two 60 million tones in 2000. N20, despite the later departure, had a greater increase to 40 million tones in 10 years. During the survey, the gap between these two gases was noticeable closed.
Transition Words or Phrases used:
first, if, regarding, second, similarly, then, third, while
Attributes: Values AverageValues Percentages(Values/AverageValues)% => Comments
Performance on Part of Speech:
To be verbs : 4.0 7.0 57% => More to be verbs wanted.
Auxiliary verbs: 0.0 1.00243902439 0% => OK
Conjunction : 2.0 6.8 29% => More conjunction wanted.
Relative clauses : 0.0 3.15609756098 0% => OK
Pronoun: 3.0 5.60731707317 54% => OK
Preposition: 35.0 33.7804878049 104% => OK
Nominalization: 1.0 3.97073170732 25% => More nominalizations (nouns with a suffix like: tion ment ence ance) wanted.
Performance on vocabulary words:
No of characters: 937.0 965.302439024 97% => OK
No of words: 192.0 196.424390244 98% => OK
Chars per words: 4.88020833333 4.92477711251 99% => OK
Fourth root words length: 3.72241943641 3.73543355544 100% => OK
Word Length SD: 2.57857740138 2.65546596893 97% => OK
Unique words: 120.0 106.607317073 113% => OK
Unique words percentage: 0.625 0.547539520022 114% => OK
syllable_count: 257.4 283.868780488 91% => OK
avg_syllables_per_word: 1.3 1.45097560976 90% => OK
A sentence (or a clause, phrase) starts by:
Pronoun: 1.0 1.53170731707 65% => OK
Article: 5.0 4.33902439024 115% => OK
Subordination: 0.0 1.07073170732 0% => More adverbial clause wanted.
Conjunction: 0.0 0.482926829268 0% => OK
Preposition: 8.0 3.36585365854 238% => Less preposition wanted as sentence beginnings.
Performance on sentences:
How many sentences: 9.0 8.94146341463 101% => OK
Sentence length: 21.0 22.4926829268 93% => OK
Sentence length SD: 54.3931731374 43.030603864 126% => OK
Chars per sentence: 104.111111111 112.824112599 92% => OK
Words per sentence: 21.3333333333 22.9334400587 93% => OK
Discourse Markers: 6.55555555556 5.23603664747 125% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 3.0 3.70975609756 81% => OK
Sentences with negative sentiment : 1.0 1.13902439024 88% => OK
Sentences with neutral sentiment: 5.0 4.09268292683 122% => OK
What are sentences with positive/Negative/neutral sentiment?
Coherence and Cohesion:
Essay topic to essay body coherence: 0.152463623869 0.215688989381 71% => OK
Sentence topic coherence: 0.0608640485654 0.103423049105 59% => OK
Sentence topic coherence SD: 0.0551374573649 0.0843802449381 65% => OK
Paragraph topic coherence: 0.0983649329321 0.15604864568 63% => OK
Paragraph topic coherence SD: 0.0598593193118 0.0819641961636 73% => OK
Essay readability:
automated_readability_index: 12.2 13.2329268293 92% => Automated_readability_index is low.
flesch_reading_ease: 75.54 61.2550243902 123% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 7.9 10.3012195122 77% => OK
coleman_liau_index: 11.02 11.4140731707 97% => OK
dale_chall_readability_score: 8.38 8.06136585366 104% => OK
difficult_words: 45.0 40.7170731707 111% => OK
linsear_write_formula: 11.0 11.4329268293 96% => OK
gunning_fog: 10.4 10.9970731707 95% => OK
text_standard: 11.0 11.0658536585 99% => OK
What are above readability scores?
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Rates: 78.6516853933 out of 100
Scores by essay e-grader: 7.0 Out of 9
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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.