The diagram below shows how salt is removed from seawater to make it drinkable. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

The diagram below shows how salt is removed from seawater to make it drinkable. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
IELTS Writing Task Chart for The diagram below shows how salt is removed from seawater to make it drinkable. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.
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The chart illustrates the process of removing salt from the seawater in order to make it drinkable, detailing each stage from drawing the
water
Use synonyms
to supplying it to users.
Firstly
Linking Words
,
saltwater
Correct your spelling
salt water
show examples
is taken by a pretreatment filter using pipelines that link the sea with containers.
Subsequently
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,
water
Use synonyms
is filtered – part of it is put forward to another container
while
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the filter backwash is again sent to the sea.
Then
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, selected
water
Use synonyms
is forced through a membrane at high pressure. Since
water
Use synonyms
molecules are smaller than salt ones, they are capable of going through the membrane. Salt,
in contrast
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, in the form of the seawater concentrate is forced to return to the sea. Before drinkable
water
Use synonyms
can be stored it has to undergo a process of chemical supplementation, which is called post-treatment.
Such
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a process is responsible for cleaning the
water
Use synonyms
using lime, chlorine, and fluoride. Clean
water
Use synonyms
is
then
Linking Words
stored waiting to be sent to users. It happens through the integrated
water
Use synonyms
supply system, which links
water
Use synonyms
storage and recipients.

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Basic structure: Change the second paragraph.
Basic structure: Change the third paragraph.
Vocabulary: Replace the words water with synonyms.
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.
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