Pie+Chart

Summarize the information in the pie charts by selecting and reporting the main features and make comparisons. Describe the subject of the data. Compare the most significant categories in the charts. Compare other categories. Summarize the information in the charts with a general conclusion. Pie Chart The two graphs show the main sources of energy in the USA in the 1980s and the 1990s. It includes oil, natural gas, coal, hydroelectric power and nuclear power. According the two pictures, we can see some of the sources has changed between 1980 and 1990. The biggest change is the oil resource. Between 1980 and 1990, it minus 9% on it. The minus part, it added into the nuclear power and coal sources. Nuclear power added 5% on it and coal sources also add 5%. There are a little ch ange on the natural gas and hydroelectric power.