The two graphs
illustrates
the various energy resources used in the USA in the two time periods ( 1980s and 1990s).
Correct subject-verb agreement
illustrate
Overall
, it is evident that consumption of oil reduced in the Linking Words
Correct your spelling
1990s
1990
Punctuation problem
1990,
whereas
that of nuclear Linking Words
power
, natural gas, and coal increased. The resource whose Use synonyms
utilization
for energy production remained constant was the hydroelectric Change the spelling
utilisation
power
.
Oil was used in Use synonyms
higher
percentage compared to other resources in both yearsCorrect article usage
a higher
,
Punctuation problem
;
Linking Words
however
Add a comma
however,
it
consumption declined by 9 % in 1990. Correct pronoun usage
its
In contrast
to that, 5% more coal and nuclear Linking Words
power
were used in the year 1990 compared to the year 1980. A similar uptrend was observed for natural gas, but only with a slight difference of 1% in the later year. Meanwhile, the only component whose Use synonyms
utilization
remained the same for both Change the spelling
utilisation
the
years was hydroelectric Correct article usage
apply
power
Use synonyms
standing
at 5 % ( 1980 and 1990).Punctuation problem
, standing