The given two pie charts illustrate changes ratio of energy production from different resources from 1985 and 2003.
Overall, huge amount of generation natural resources such as oil, natural gas, coal, nuclear, while few power produced by hydro and other renewable sources.
To begin with, in1985 more then fifty percent power create by used oil so, this trend slightly reduced in the year 2003 almost 13% decline. Moreover, the used of natural gas increased in 10% whole over the period while, beginning of the year the production of power by used coal just 8%, similarly, raises proportion of coal in 2003. Nuclear power station produced power nearly one quarter but in 2003 decreased by one third of used nuclear.
On the other hand, hydropower main source of energy production in two images show almost equal used natural resources, while, renewable energy also called alternative energy, ni1985 just 1% production of alternative source but in 2003 increased 3% and slowly popular alternative source in these day’s.