The two graphs show the main sources of energy in the USA in the 1980s and the 1990s

The two graphs
show
the main sources of energy in the usa in the 1980s and the 1990s. The two graphs
show
the main sources of energy in the usa in the 1980s and the 1990s. The two graphs
show
the main sources of energy in the usa in the 1980s and the 1990s. The two graphs
show
the main sources of energy in the usa in the 1980s and the 1990s. The two graphs
show
the main sources of energy in the usa in the 1980s and the 1990s. The two graphs
show
the main sources of energy in the usa in the 1980s and the 1990s. The two graphs
show
the main sources of energy in the usa in the 1980s and the 1990s.