The pie chart illustrates the most used sources of energy (oil, natural gas, coal hydroelectric power and nuclear power) in 1980 and 1990 in the United States of America.
Overall, oil was most the employed energy in both years, followed by natural gas and coal. In 1980 coal was the least favourite source of energy, together with hydroelectric power, while in 1990 the graph indicates that USA preferred coal over hydroelectric energy.
Whereas natural gas’s percentage minimally changed from 26% in 1980 to 25% in 1990, a significant decrease is noticeable for petrol, which descended from 42% in 1990 to 33% in 1980. On the contrary, coal and hydroelectric energies increased respectively from 22% and 5% in 1980 to 27% and 10% 10 years later, in 1990.
Hydroelectric energy’s percentage remained unchanged in 1980 and 1990 and it’s the least employed source with 5%.
The pie chart illustrates the most
used
sources of
energy
(oil, natural gas, coal hydroelectric power and nuclear power) in 1980 and 1990 in the United States of America.
Overall
, oil was most the employed
energy
in both years, followed by natural gas and coal. In 1980 coal was the least
favourite
source of
energy
, together with hydroelectric power, while in 1990 the graph indicates that USA
preferred coal over hydroelectric energy
.
Whereas natural gas’s percentage
minimally
changed
from 26% in 1980 to 25% in 1990, a significant decrease is noticeable for petrol, which descended from 42% in 1990 to 33% in 1980.
On the contrary
, coal and hydroelectric
energies
increased
respectively
from 22% and 5% in 1980 to 27% and 10% 10 years later, in 1990.
Hydroelectric
energy’s
percentage remained unchanged in 1980 and
1990 and
it’s the least employed source with 5%.
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