The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. Write a report for a university lecturer describing the changes which occurred.

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

Write a report for a university lecturer describing the changes which occurred.
The two given pie charts illustrate the main
sources
of energy in the United
state
Fix the agreement mistake
States
show examples
of America, from 1980 to 1990.
Overall
, it can clearly be seen that the main
sources
did not
changed
Change the verb form
change
show examples
dramatically throughout the years, and that the highest
percentage
of
sources
was oil.
According to
what is shown, in 1980 the highest
percentage
of
sources
was oil at 42%. But,
this
percentage
decreased substantially in the next 10
year
Fix the agreement mistake
years
show examples
to reach 33%.
However
, the opposite happened to the coal resource, as
is
Correct your spelling
it
show examples
start
Wrong verb form
started
show examples
at 22% in 1980 and rose to 27% in the next decade.
Whereas
, the
percentage
of hydroelectric power was the same throughout the years. Looking closely at the figures, the second highest
percentage
in 1980 was natural gas, but in 1990
this
proportion dropped slightly to 25%.
Moreover
, in 1980 nuclear power was just 5%.
However
,
this
percentage
increased
about
Change preposition
by about
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a half
percent
Change the spelling
per cent
show examples
.
Submitted by aminaalmatrook on

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Linking words: Don't use the same linking words: "however".
Common mistake: Your writing should be 150-250 words.
Vocabulary: Replace the words sources, percentage with synonyms.
Vocabulary: The word "percentage" was used 6 times.
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