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Sea Otter's Population Decline

Sea Otter's Population Decline oVrWg
The author argues that pollution attributes to sea otter population decline; however, the speaker cast doubt on the possibility of this theory based on other animal disappearance, uneven distribution, and known pollution sources, citing the predation theory. The author believes that water sample from known sources of pollution indicates that otter’s resistance level to infection has been reduced due to the amount of chemical substance, causing death to more otters. However, regarding the fact that no dead body has been found, the lecturer argues that predation is a more probable cause since a predator eats the whole prey. Since other sea mammals like sea lions have also experienced a population decline, the author persists that pollution is a cause because it affects the whole ecosystem. In addition, the author states that such a massive decline in sea mammal’s population can be caused only by orca, but since they prefer much larger animals, this explanation is not satisfying. On the contrary, the speaker strongly believes that orca had to change their diet to smaller sea mammals because whales are not available due to overhunting by human beings. The author cites the uneven distribution of decline caused by the ocean's current or other environmental factors that spread pollution. On the other hand, the lecturer believes that the uneven distribution of decline is better explained by predation theory. Finally, the lecturer states that the orca's inability to catch sea otters in shallow and rocky waters is why the uneven distribution of decline occurs.
The
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author
argues that
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pollution
attributes to
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sea
otter population
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decline
;
however
, the speaker cast doubt on the possibility of this theory based on
You use this word too often, consider replacing it with
other
animal disappearance,
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uneven
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distribution
, and known
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pollution
sources, citing the predation theory.

The
You use this word too often, consider replacing it with
author
believes that water sample from known sources of
You use this word too often, consider replacing it with
pollution
indicates that otter’s resistance level to infection has been
This phrase/word (depending on the context) can be potentially replaced with :
reduced
due to the amount of chemical substance, causing death to more otters.
However
, regarding the fact that no dead body has
been found
, the lecturer argues that predation is a more probable cause since a predator eats the whole prey.

Since
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other
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sea
mammals like
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sea
lions have
also
experienced a population
You use this word too often, consider replacing it with
decline
, the
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author
persists that
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pollution
is a cause
This phrase/word is too simple and can be replaced with:
because
it affects the whole ecosystem.
In addition
, the
You use this word too often, consider replacing it with
author
states that such a massive
You use this word too often, consider replacing it with
decline
in
You use this word too often, consider replacing it with
sea
mammal’s population can
be caused
This phrase/word (depending on the context) can be potentially replaced with :
only
by orca,
This phrase/word is too simple and can be replaced with:
but
since they prefer much larger animals, this explanation is not satisfying.
On the contrary
, the speaker
strongly
believes that orca had to
This phrase/word (depending on the context) can be potentially replaced with :
change
their diet to smaller
You use this word too often, consider replacing it with
sea
mammals
This phrase/word is too simple and can be replaced with:
because
whales are not available due to overhunting by human beings.

The
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author
cites the
You use this word too often, consider replacing it with
uneven
You use this word too often, consider replacing it with
distribution
of
You use this word too often, consider replacing it with
decline
caused by the ocean's
This phrase/word (depending on the context) can be potentially replaced with :
current
or
You use this word too often, consider replacing it with
other
environmental factors that spread
You use this word too often, consider replacing it with
pollution
. On the
You use this word too often, consider replacing it with
other
hand, the lecturer believes that the
You use this word too often, consider replacing it with
uneven
You use this word too often, consider replacing it with
distribution
of
You use this word too often, consider replacing it with
decline
is better
This phrase/word (depending on the context) can be potentially replaced with :
explained
by predation theory.
Finally
, the lecturer states that the orca's inability to catch
You use this word too often, consider replacing it with
sea
otters in shallow and rocky waters is why the
You use this word too often, consider replacing it with
uneven
You use this word too often, consider replacing it with
distribution
of
You use this word too often, consider replacing it with
decline
occurs.
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IELTS essay Sea Otter's Population Decline

Essay
  American English
4 paragraphs
250 words
6.0
Overall Band Score
Coherence and Cohesion: 5.5
  • Structure your answers in logical paragraphs
  • ?
    One main idea per paragraph
  • Include an introduction and conclusion
  • 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: 5.5
  • 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: 6.0
  • Answer all parts of the question
  • ?
    Present relevant ideas
  • Fully explain these ideas
  • Support ideas with relevant, specific examples
Labels Descriptions
  • ?
    Currently is not available
  • Meet the criteria
  • Doesn't meet the criteria
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