The pie charts illustrate the amount of each type of energy : coal, petroleum, natural gas ,nuclear and Hydro, produced in both 1980 and 2010 .
Overall
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while
in 1980 most parts of the energy was represented by natural gases and coal, in 2010 nuclear energy has become the most popular type of power.
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Firstly
, meanwhile in 1980 Nuclear power represented only 20 parts of the world's vitality, in 2010 it increased to 155 units, becoming the main force source. Linking Words
Secondly
,petroleum had a small growth over the given period , from 22 to 27 units.
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Furthermore
, the biggest decline has occurred in natural gas production, starting from 28 parts of the world's electricity, and ending at 2 proportions. Linking Words
Nevertheless
,the only form of power source that remained constant was coal, so it represented 28 units in both years.Between 1980 and 2010, Hydropower stayed the least-used type of capacity , changing from 7 sections to only 2 sections.Linking Words
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