The two pie charts provide information about the various power plant resources in the USA. The data was taken from the 1980s and 1990s.
Overall
, there was not much difference in the numbers between the two periods, only a little update.
Looking first at the 1980s era, more than a quarter of all the sources used in America were fuel fossil power, specifically in using oil. Linking Words
In addition
, the amount of natural gas and coal was nearly the same above 20%. The nuclear and hydroelectric had the same count, it was 5%. Linking Words
However
, the awareness of the use of green electricity in the US was lower.
Linking Words
On the other hand
, in the 1990s, fortunately, there was a decrease in using of fuel fossil, especially oil. Linking Words
Firstly
, the count of oil experienced downward to around one-third. Linking Words
Secondly
, natural gas and coal did not much change from the 1980s to 1990s, it was still above 20%. Linking Words
Moreover
, renewable sources, Linking Words
for instance
, hydroelectrical had an equal percentage, it did not switch at all. Linking Words
Lastly
, the nuclear power tended upward to 10%.Linking Words
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