The graph below gives information from a 2008 report about consumption of energy in the USA since 1980 with projections until 2030

The given graph indicates the US energy usage by fuel in

quadrilion

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quadrillion

units

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between the

period

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1980-2030.

Linking Words

Overall

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Overall,

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we can notice that

Petrol

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and

Oil

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was

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were

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the highest usage and

suggested

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are expected

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to be the highest in the future,

while

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hydro power, nuclear, and solar/wind started from the same point

but

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, but

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Hydropower

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hydro power

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started decreasing and it will continue decreasing in the next 5 years. First we can see in the graph that

Petrol

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and

Oil

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, and the natural gas fluctuated from the begin 1980 until 2005, after that

Petrol

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and

Oil

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kept increasing significantly until the

year

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2025 after it reached approximately 47

units

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and it will continue increasing until the

year

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2030,

while

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the Natrual Gas increased after 2005 went up to 25 quadrillion and will stay the same until the

end

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of the

period

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.The Coal consumption it increased slightly from 16 to 23 about the

year

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1993 after that it stayed level off to the

year

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2005 before it started increasing dramatically to 30

units

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in 2025 and it will keep increasing to 32 quadrillion in 2030,

on the other hand

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hydro power went up and down from the starting of the

period

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until 2010 after that it stayed the same. In the

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end

Add a comma

end,

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Nuclear and Solar/Wind kept increasing gradually until

and

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apply

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2025

and

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, and

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it will continue increasing for 5 more years. To sum it up

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Petrol

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, Petrol

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and

Oil

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, and the Coal usage increased by 15 and 13

units

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from the

begging

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beginning

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until the

end

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of the

period

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, in the Nuclear, Solar/Wind, and Hydropower

the

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, the

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gap between the

begin

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beginning

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and the

end

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is small compared with the

Petrol

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and

oil

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, and coal.