The given graph shows the main sources of energy for USA in 1980 and 1990
The two above pie charts present the majority of
resources
for the USA in 1980 and 1990.
In 1980, Oil stood in a dominant position that is
42%. Gas
has the second storage in all resources
which contributes 26%. Meanwhile, the amount of coal was slightly lower than natural gas
which is 22%. The rest 10% of the resources
were split evenly by hydroelectric power
and nuclear power
.
In comparison with 1980, the oil consumption dropped to 33% in 1990. Meanwhile, natural gas
almost stayed still and supported a quarter of sources. In contrast
, coal and nuclear power
have an obvious increase which are 4% and 5% respectively. Last
but not least, green power
did not change from 1980 to 1990.
Overall
, oil and natural gas
promoted major usage of resources
in both years, and the development of green power
and nuclear power
was still in the initial phase in 1980 and 1990.Submitted by xiaol8616 on
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