IELTS Writing Correction Service
Writing Samples
Band 7

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 chart depicts how much
nitrogen
Use synonyms
oxide
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emission
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produced
Add a missing verb
is produced
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 per kilometre by four vehicles.
Overall
Linking Words
, the amounts of
nitrogen
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oxide
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emission
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 production
of
Change preposition
by
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 petrol
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car
Fix the agreement mistake
cars
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 stays relatively constant at all speed
levels
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,
while
Linking Words
 diesel
car
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's
emission
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 slowly decreases when the speed is increased. Lorries' and buses' emissions first decrease in the beginning speed
levels
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, and
therefore
Linking Words
, gradually increase over the next speed
levels
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. The amount of
nitrogen
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oxide
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emission
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 of buses is 40
g
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/
km
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 at 10
kph
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 which gradually decreases to just above 25
g
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/
km
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 at 60
kph
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 before increasing around 42
g
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/
km
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 at 130
kph
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. Lorries'
nitrogen
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oxide
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emission
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 rate is nearly 35
g
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/
km
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 at the very beginning speed, and
then
Linking Words
 it drops moderately to just above 15
g
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/
km
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 at 90
kph
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. It inclines back to almost 25
g
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/
km
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 in the final speed level of lorries. The remaining vehicles, diesel and petrol cars, do not produce high
amount
Fix the agreement mistake
amounts
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 of
nitrogen
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oxide
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 emissions during the all speed
levels
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that
Correct pronoun usage
apply
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recorded. Petrol
car
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's
emission
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 rate remains relatively constant at just above 10
kph
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 at the beginning and the ending
levels
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. Diesel
car
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's
emission
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 rate slowly falls from around 6
g
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/
km
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 to about 5
g
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/
km
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 when the speed increases from 10
kph
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 to 130
kph
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.

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Vocabulary: Replace the words nitrogen, oxide, emission, car, levels, g, km, kph with synonyms.
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Vocabulary: The word "amounts" was used 3 times.
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Vocabulary: The word "decreases" was used 3 times.
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Vocabulary: The word "increased" was used 3 times.
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Vocabulary: The word "around" was used 2 times.
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Vocabulary: The word "gradually" was used 2 times.
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Vocabulary: The word "slowly" was used 2 times.
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