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The graph illustrates energy consumption by 6 types of fuel in USA from 1980 to 2030 by quadrillion units.
To sum up, the state of petrol and oil is always highest, coal and natural gas are at middle state, and others are similarly low.
First of all, the consumption volume of petrol and oil is always top in all years recording from about 30 quadrillion to 47 quadrillion. The amount of consumed coal and natural gas was fluctuated from 1980 to 2015 at similar quantity, but after then, will show different aspect that the consumption level of coal will grow up to about 30 quadrillion, and the level of natural gas will steady at about 23 quadrillion.
The consumption amounts of other fuels were almost same from 1980 to 1985. However, the consumption level of nuclear has risen up to about 6 quadrillion and keep that state until 2030. The consumption levels of solar/wind and hydropower were fluctuated at the similar value from 1990 to 2005, but has changed and solar/wind will gradually grow up to about 5 quadrillion in 2030, and the consumption of hydropower will steady at about 3 quadrillion.
이제 Task1도 해보려고 하는데... 생각보다 어렵군요 ㅜ. |