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The diagram below shows the production of electricity using a system called Ocean Thermal Energy Conversion (OTEC).

The diagram illustrates the process for generating electricity by using seawater through the system of Ocean Thermal Energy Conversion (OTEC). It also describes how pure drinking water is attained through the same process. Overall, this system involves three distinct stages of utilizing solar energy, evaporation chamber, and condensing chamber. Moreover, up to 1000 meters deep in the sea, the water is used to maintain the temperature difference which helps in the process of evaporation and condensation. Firstly, the surface water of the sea which is heated by the sun up to 29-degree celsius is passed into the evaporation chamber. From this point, salt particles are removed and the water gets evaporated to pass through a turbine. The movement of water vapors through the turbine generates electricity. In the next level, these vapors travel down the pipe into a condensing chamber where it is continuously cooled down by the deep seawater circulating this chamber. Finally, pure drinking water is produced from this chamber and the salt is drained back into the sea.
The diagram illustrates the process for generating electricity by using seawater
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through
the system of Ocean Thermal Energy Conversion (
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OTEC
). It
also
This phrase/word (depending on the context) can be potentially replaced with :
describes
how pure drinking
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water
is attained
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through
the same process.

Overall
, this system involves three distinct stages of utilizing solar energy, evaporation
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chamber
, and condensing
You use this word too often, consider replacing it with
chamber
.
Moreover
, up to 1000 meters deep in the sea, the
You use this word too often, consider replacing it with
water
is
This phrase/word (depending on the context) can be potentially replaced with :
used
to maintain the temperature difference which
This phrase/word (depending on the context) can be potentially replaced with :
helps
in the process of evaporation and condensation.

Firstly
, the surface
You use this word too often, consider replacing it with
water
of the sea which
is heated
by the sun up to 29-degree
Possible spelling mistake found.
celsius
is passed
into the evaporation
You use this word too often, consider replacing it with
chamber
. From this point, salt particles
are removed
and the
You use this word too often, consider replacing it with
water
This phrase/word (depending on the context) can be potentially replaced with :
gets
evaporated to pass
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through
a turbine. The movement of
You use this word too often, consider replacing it with
water
vapors
You use this word too often, consider replacing it with
through
the turbine generates electricity.

In the
next
level, these vapors travel down the pipe into a condensing
You use this word too often, consider replacing it with
chamber
where it is
continuously
cooled down by the deep seawater circulating this
You use this word too often, consider replacing it with
chamber
.
Finally
, pure drinking
You use this word too often, consider replacing it with
water
is produced
from this
You use this word too often, consider replacing it with
chamber
and the salt
is drained
back into the sea.
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IELTS academic The diagram below shows the production of electricity using a system called Ocean Thermal Energy Conversion (OTEC).

Academic
  American English
4 paragraphs
171 words
6.0
Overall Band Score
Coherence and Cohesion: 7.0
  • Structure your answers in logical paragraphs
  • ?
    One main idea per paragraph
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    Include an introduction and conclusion
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    Support main points with an explanation and then an example
  • Use cohesive linking words accurately and appropriately
  • ?
    Vary your linking phrases using synonyms
Lexical Resource: 5.0
  • Try to vary your vocabulary using accurate synonyms
  • Use less common question specific words that accurately convey meaning
  • Check your work for spelling and word formation mistakes
Grammatical Range: 6.5
  • Use a variety of complex and simple sentences
  • Check your writing for errors
Task Achievement: 5.5
  • Answer all parts of the question
  • ?
    Present relevant ideas
  • Fully explain these ideas
  • ?
    Support ideas with relevant, specific examples
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