These two pie chart depicts the ratios of the major sources of energy in two periods: 1980 and 1990 in the united state. It is clear from the graph that oil and natural gas are the main sources with more than 50%.
This pie chart depicts the ratios of the sources of energy in two period: 1980 and 1990 in the United state. It is clear from the graph that oil and natural gas are the main sources with more that 50%.
The provided two pie charts demonstrate the proportional distribution of the energy sources, namely oil, natural gas, coal, and new alternatives in the USA in percentages between 1980s and 1990s.
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