Which of the following sources of energy provides the preponderance of energy in much of the underdeveloped world?

Question

Quizplus · Accepted Answer

In much of the underdeveloped world, human labor provides the preponderance of energy. The principal supplements to human energy are animals, wood, fossil fuel, nuclear power, and to a lesser and more experimental extent, the ocean's tides, geothermal power, and the sun.

Which of the Following Sources of Energy Provides the Preponderance