Petroleum - 37.1%, Natural Gas - 23.8%, Coal - 22.5%, Nuclear - 8.5%, and Renewables (Hydroelectric, Solar, Wind, Wood) - 7.3%.
As a source of labor
The Major source of income in colonial Maryland are, Oysters, fish, and Crabs
Fur Trade.
Horses, wagons and trains
factories and mills
the sun is the main source of energy of the earth the sun is the main source of energy of the earth the sun is the main source of energy of the earth
sun is the main source of energy.
Petroleum is the main source of energy for transportation.
Sunlight is the main energy source for life on earth.
The main source for plants is the light
The main source of light is the sun
carbohydrates
The main source of energy in Romania are the thermoelectric units (with coal or methane).
The main source of energy and heat is the sun.
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Steam was the main source of energy during the industrial revolution.
The main source of light is the sun