The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. Summarise the information by selecting and reporting the main features, and make comparisons where relevant.

This pie chart iliustrate the proportion of five types of energy in the USA in 1980 and 1990. Overall, in both years the significan source of energy was oil, while hydroelectric power and nuclear power energy sources were the least amoun of energy in USA. Aditionaly, in ten years these, production rose across all major […]

The given pie chart clearly compare the main sources of energy in the USA in terms of five important categories in between 1980 and 1990. As show in the graph that USA people utlized the largest proportion of thier expenditure on three resources, likely oil, natural gas and coal in 1980. Moreover, a tiny fraction […]