The chart below shows the proportion of energy produced from different sources in a country between 1985 and 2003.
The given pie charts provide information about the 
energy
 produced by a country using 6 difficult sources from 1985 to 2003.
In general, the main source from which the energy
 was produced was oil with 52
% contribution in 1985. Correct article usage
a 52
Likewise
, in 2003 oil contributed 39% in
 Change preposition
of
energy
 production. But compared to 1985 the reliability
 of natural gas to manufacture energy
 increased from 1% to 4% and 8% to 13% respectively.
On the other hand
, reliability
 to manufacture Correct article usage
the reliability
energy
 on nuclear was 22% in 1985 which reduced
 to 17% by 2003. Add a missing verb
was reduced
While
 the reliability
 on
 most of the resources fluctuated, the Change preposition
of
reliability
 on
 hydrogen remained constantChange preposition
of
 4
%. Change preposition
at  4
Overall
 from 1985 to 2003 oil stayed the main source of energy
 production and other renewable resources remained the least.Submitted by omondavlat91 on 
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Common mistake: Your writing should be 150-250 words.
Vocabulary: Replace the words energy, reliability with synonyms.
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Vocabulary: The word "remained" was used 2 times.
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