We can see that there are two pie charts. In the 1970 s and 1980 s Statistical chart of major sources of energy in the United States. In 1970, most American residents did not use nuclear power to generate electricity. Coal is the most used. By 1980 The use of boxes to generate electricity is much higher than in 1970. Coal has also greatly increased demand. Some of the natural gas has decreased, and water, electricity and oil have barely changed. The main sources of electricity in the United States are coal, oil and water and electricity Natural Gas .
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