The diagram below shows how a biofuel called ethanol is produced. Summrise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram below shows how a biofuel called ethanol is produced. Summrise the information by selecting and reporting the main features, and make comparisons where relevant.
IELTS Writing Task Chart for The diagram below shows how a biofuel called ethanol is produced. Summrise the information by selecting and reporting the main features, and make comparisons where relevant.
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The diagram above illustrates the production of ethanol as a biofuel.
Overall
Linking Words
, the process started with trees collecting
its
Correct pronoun usage
their
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energy from sunlight and carbon dioxide. In the end, ethanol becomes a biofuel for
transportations
Fix the agreement mistake
transportation
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such
Linking Words
as cars, trucks, and planes, which produce the carbon dioxide used. To start with, trees are
then
Linking Words
harvested before
undergone
Wrong verb form
undergoing
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the pre-processing process.
Then
Linking Words
, the harvested
tree
Fix the agreement mistake
trees
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are turned into celluloses. Celluloses are
then
Linking Words
processed with chemicals, next thing you know, sugars are made.
Next,
Linking Words
microbes are added to what previously
was
Correct subject-verb agreement
were
show examples
sugars.
Finally
Linking Words
, ethanols are produced. In the end, ethanols are used as a biofuel for cars, trucks, and planes.
Then
Linking Words
, carbon dioxides are produced by these transportations, and the rest is a cycle.

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Common mistake: Your writing should be 150-250 words.
Basic structure: Change the third paragraph.
Basic structure: Change the fourth paragraph.
Vocabulary: Only 2 basic words for charts were used.
Vocabulary: Use several vocabularies to present the data in the second paragraph.
Vocabulary: Use several vocabularies to present the data in the third paragraph.
Vocabulary: Use several vocabularies to present the data in the fourth paragraph.
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