|
1
|
energy source
|
United States
|
Reliance on diverse energy sources, including fossil fuels, nuclear, and renewable energy.
|
1
|
|
2
|
energy sources
|
United States
|
Reliance on coal, oil, and natural gas for energy production
|
1
|
|
3
|
power sources
|
United States
|
Reliance on fossil fuels for energy production
|
1
|
|
4
|
renewable energy
|
United States
|
Widely promoted and embraced as a sustainable energy source
|
1
|
|
5
|
renewable energy sources
|
United States
|
Wind and solar power are popular renewable energy sources, often used for electricity generation.
|
1
|