IELTS Writing Correction Service
Writing Samples
Band 6.5

The given graph shows the nitrogen oxide emissions produced by four vehicles. Summarise the information by selecting and reporting the main points and make comparisons where relevant.

The given graph shows the nitrogen oxide emissions produced by four vehicles. Summarise the information by selecting and reporting the main points and make comparisons where relevant.
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The line graph depicts the release of
nitrogen
Use synonyms
oxide
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 from four different vehicles, namely diesel cars, petrol cars,
lorries
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 and
buses
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. Data is calibrated in
gram
Fix the agreement mistake
grams
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 per
km
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.
Overall
Linking Words
, it is evident that the maximum
nitrogen
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oxide
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emission
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 is from
the
Correct article usage
apply
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buses
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, followed by
lorries
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 and
very
Correct article usage
the very
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 least gas
emission
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 is from petrol and diesel cars.
To begin
Linking Words
 with, at 10kmp
speed
Add a comma
,speed
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 the diesel car produced approximately 7g of
nitrogen
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oxide
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 per kilometer. The level of
emission
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 decreased when the speed
has
Unnecessary verb
apply
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increased and at speed starting from 50kmp, it remained
5
Change preposition
at 5
show examples
g/
km
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,
while
Linking Words
 when a petrol car is at 10kmp it produced a little over 10g/
km
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 of
nitrogen
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oxide
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. As the speed increased, the quantity of
emission
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 decreased slightly and at 80
km
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/
hr
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 speed, it was about 9g/
km
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. Interestingly, at speeds above 110km/
hr
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, the rate of
emission
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 of
nitrogen
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oxide
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 increased.
On the other hand
Linking Words
, For
lorries
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, the
emission
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 level was the highest (33g/
km
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) at 10km/
hr
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 speed and reached the lowest (17g/
km
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) at 90km/
hr
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 speed. The rate of emissions increased again at speeds above 90km/
hr
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 and it was 25g/
km
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 at 130km/
hr
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 speed. At 10
km
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/
hr
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 speed, they produced 40g/
km
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 of
nitrogen
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oxide
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.
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Emission
Correct article usage
The emission
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 level was the lowest (6g/
km
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) at 60km/
hr
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 speed and it increased dramatically at higher speeds. At 130km/
hr
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 speed,
buses
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 were producing as much as 43g/
km
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 of
nitrogen
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oxide
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. At 60kmp both
lorries
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 and
buses
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 produced almost equal
amount
Fix the agreement mistake
amounts
show examples
 of
nitrogen
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oxide
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(approximately 25g/
km
Use synonyms
).

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Vocabulary: Replace the words nitrogen, oxide, lorries, buses, km, emission, kmp, g, hr with synonyms.
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Vocabulary: The word "decreased" was used 2 times.
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Vocabulary: The word "increased" was used 5 times.
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Vocabulary: Use several vocabularies to present the data in the second paragraph.
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