The two main graphs show the main sources of energy in the USA in 1980 and 1990.

The pie charts illustrate the changes in the composition of the USA's

energy

sources in 1980 and 1990.

Overall

, dominating both years'

energy

sources, oil claimed the lion's

share

, exhibiting a noteworthy downsurge over the decade shown.

Furthermore

, the

share

of nuclear

power

had doubled during a period of ten years,

while

the

share

of hydroelectric

power

remained unchanged. Looking at 1980, the oil commanded the largest slice of pie at 42%,

then

fell to 33% in the following decade.

Conversely

, over the period shown, the consumption of natural gas experienced a decrease of a meagre 1%. In the same period, the use of nuclear

power

accounted for 5% in 1980, before rising to 10% in 1990, showcasing the greatest growth among other items over 10 years.

Furthermore

, the

share

of coal in the composition of

energy

sources in the USA witnessed a small increase of 5% from 22% in 1980 to 27% in 1990.

However

, the hydroelectric

power

remained the same at 5% as the smallest source of

energy

in the USA between 1980 and 1990.