The given graph shows the nitrogen oxide emissions produced by four vehicles

The line chart compares the emission of nitrogen oxide by 4 different types of automobiles with the speed. The emission is measured in grams per kilometer (g/km), and the speed is given in kilometers per hour (kph).

Overall, the production of nitrogen oxide is markedly higher in heavy vehicles. Noticeably, buses increase the emission at higher speeds, whereas the emission of cars does not alter with the speed.

In terms of heavy vehicles, buses witness the highest emission. At the speed of 10 kph, they emit 40g/km; however, the amount of gas production drops steadily to around 25g/km at 70 kph speed. Afterward, this amount rises dramatically to reach approximately 42g/km at the speed of 130kph. The emission of lorries is fairly lower than buses, with about 33 g/km at 10 kph speed and drops gradually to nearly 22 g/km at the velocity of 90 kph, after which the gas production rises steadily to nearly 25 g/km at the highest speed.

In contrast, personal cars have lower emissions. Petrol cars emit nitrogen oxide at a rate of just above 10 g/km and remain more or less the same with the speed. Similarly, diesel cars, which have the lowest emission, remain steadily at a 5 g/km emission rate with the speed.

Votes
Average: 7.3 (1 vote)
Essays by the user:

Transition Words or Phrases used:
however, if, similarly, so, whereas, in contrast, more or less

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 : 4.0 6.8 59% => More conjunction wanted.
Relative clauses : 2.0 3.15609756098 63% => OK
Pronoun: 2.0 5.60731707317 36% => OK
Preposition: 39.0 33.7804878049 115% => OK
Nominalization: 3.0 3.97073170732 76% => OK

Performance on vocabulary words:
No of characters: 1015.0 965.302439024 105% => OK
No of words: 210.0 196.424390244 107% => OK
Chars per words: 4.83333333333 4.92477711251 98% => OK
Fourth root words length: 3.80675409584 3.73543355544 102% => OK
Word Length SD: 2.50568967065 2.65546596893 94% => OK
Unique words: 108.0 106.607317073 101% => OK
Unique words percentage: 0.514285714286 0.547539520022 94% => More unique words wanted or less content wanted.
syllable_count: 290.7 283.868780488 102% => OK
avg_syllables_per_word: 1.4 1.45097560976 96% => OK

A sentence (or a clause, phrase) starts by:
Pronoun: 2.0 1.53170731707 131% => OK
Article: 5.0 4.33902439024 115% => OK
Subordination: 1.0 1.07073170732 93% => OK
Conjunction: 1.0 0.482926829268 207% => Less conjunction wanted as sentence beginning.
Preposition: 5.0 3.36585365854 149% => OK

Performance on sentences:
How many sentences: 11.0 8.94146341463 123% => OK
Sentence length: 19.0 22.4926829268 84% => The Avg. Sentence Length is relatively short.
Sentence length SD: 46.5150824202 43.030603864 108% => OK
Chars per sentence: 92.2727272727 112.824112599 82% => OK
Words per sentence: 19.0909090909 22.9334400587 83% => OK
Discourse Markers: 5.63636363636 5.23603664747 108% => OK
Paragraphs: 4.0 3.83414634146 104% => OK
Language errors: 0.0 1.69756097561 0% => OK
Sentences with positive sentiment : 2.0 3.70975609756 54% => More positive sentences wanted.
Sentences with negative sentiment : 3.0 1.13902439024 263% => Less negative sentences wanted.
Sentences with neutral sentiment: 6.0 4.09268292683 147% => OK
What are sentences with positive/Negative/neutral sentiment?

Coherence and Cohesion:
Essay topic to essay body coherence: 0.11007500558 0.215688989381 51% => OK
Sentence topic coherence: 0.0598660145183 0.103423049105 58% => OK
Sentence topic coherence SD: 0.0593954710331 0.0843802449381 70% => OK
Paragraph topic coherence: 0.106259157261 0.15604864568 68% => OK
Paragraph topic coherence SD: 0.0663822407302 0.0819641961636 81% => OK

Essay readability:
automated_readability_index: 10.9 13.2329268293 82% => Automated_readability_index is low.
flesch_reading_ease: 69.11 61.2550243902 113% => OK
smog_index: 3.1 6.51609756098 48% => Smog_index is low.
flesch_kincaid_grade: 8.3 10.3012195122 81% => OK
coleman_liau_index: 10.73 11.4140731707 94% => OK
dale_chall_readability_score: 7.89 8.06136585366 98% => OK
difficult_words: 44.0 40.7170731707 108% => OK
linsear_write_formula: 8.0 11.4329268293 70% => OK
gunning_fog: 9.6 10.9970731707 87% => OK
text_standard: 8.0 11.0658536585 72% => OK
What are above readability scores?

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Rates: 73.0337078652 out of 100
Scores by essay e-grader: 6.5 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.