use the graph to answer the question shares a total us energy consumption by the major sources and selected year 1776 to 2018 which has been the primary source of energy in the most recent century

Answer 1

In the most recent century (2001-2018), petroleum has been the primary source of energy in the United States. This is based on the data shown in the graph, where petroleum consistently accounts for the largest share of US energy consumption during this time period.