Given is pie charts showing the proportion of energy for USA in the years 1980 and 1990.
Overall, it is evident that oil and coal was the dominant sources of energy for USA in two years. While the percentage of coal along with nuclear power saw an increase, the opposite was true for natural gas.
Commencing with the highest amount of energy sources, as it was already pointed out, oil was the most important source in USA, and it constituted 42% in the chart in 1980. But the amount of it decreased in 1990, at 33%. In addition, natural gas was the next vital source of energy, so the index of it was nearly similar in two years.
Turning to the next sources of energy, coal made up a mere 22% in 1980, but it grew to 27% in 1980. Finally, the indices of hydroelectic power along with nuclear power were identical in 1980(5% each). Interestingly, the rate of nuclear power experienced growth in 1990, at 10%.
Given
is pie charts showing the proportion of
energy
for USA
in the years 1980 and 1990.
Overall
, it is evident that oil and coal was the dominant
sources
of
energy
for USA
in two years. While the percentage of coal along with nuclear
power
saw
an increase, the opposite was true for natural gas.
Commencing with the highest amount of
energy
sources
, as it was already pointed out, oil was the most
important
source
in USA
, and it constituted 42% in the chart in 1980.
But
the amount of it decreased in 1990, at 33%.
In addition
, natural gas was the
next
vital
source
of
energy
,
so
the index of it was
nearly
similar in two years.
Turning to the
next
sources
of
energy
, coal made up a mere 22% in 1980,
but
it grew to 27% in 1980.
Finally
, the indices of
hydroelectic
power
along with nuclear
power
were identical in 1980(5% each).
Interestingly
, the rate of nuclear
power
experienced growth in 1990, at 10%.