The pie charts compare the contribution of different means for producing electric energy in the US in 1980 and 1990.
As is illustrated in both charts,
although
oil contribution fell from 42 per cent in 1980 to 33 Linking Words
Use synonyms
percent
in 1990, it still comprises the most significant share of electric Change the spelling
per cent
power
generation in both of the pie charts.
Use synonyms
Besides
oil, natural gases, and coal had the second and third proportion for Linking Words
power
generation in 1980 with 26 and 22 Use synonyms
Use synonyms
percent
in turn. The percentage of these two mentioned electricity production methods had changed slightly in 1990, Change the spelling
per cent
however
, these minimal changes reversed their position to the coals becoming the second most used method for Linking Words
power
input in 1990 with 27 Use synonyms
Use synonyms
percent
share and natural gas reaching 25 Change the spelling
per cent
Use synonyms
percent
.
Meanwhile, hydroelectric Change the spelling
per cent
power
remained exactly the same in both figures with 5 Use synonyms
Use synonyms
percent
proportion of the whole Change the spelling
per cent
while
the share of nuclear Linking Words
power
doubled from 5% in 1980 to 10% in 1990.Use synonyms
yalda.nazari48