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 Use synonyms
that is
42%. Linking Words
Gas
has the second storage in all Use synonyms
resources
which contributes 26%. Meanwhile, the amount of coal was slightly lower than natural Use synonyms
gas
which is 22%. The rest 10% of the Use synonyms
resources
were split evenly by hydroelectric Use synonyms
power
and nuclear Use synonyms
power
.
In comparison with 1980, the oil consumption dropped to 33% in 1990. Meanwhile, natural Use synonyms
gas
almost stayed still and supported a quarter of sources. Use synonyms
In contrast
, coal and nuclear Linking Words
power
have an obvious increase which are 4% and 5% respectively. Use synonyms
Last
but not least, green Linking Words
power
did not change from 1980 to 1990.
Use synonyms
Overall
, oil and natural Linking Words
gas
promoted major usage of Use synonyms
resources
in both years, and the development of green Use synonyms
power
and nuclear Use synonyms
power
was still in the initial phase in 1980 and 1990.Use synonyms
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