A= The three main sources are coal, petroleum and natural gas.
Source - Wikipedia
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Coal, oil, and natural gas are the main three nonrenewable primary energy sources.
After 3 hours of exercise, the main sources of energy utilized by the body are carbohydrates stored in muscles and liver, as well as fats stored in adipose tissue. These energy sources are broken down to provide fuel for the muscles to continue working during prolonged physical activity.
The main sources of energy in Canada are hydroelectric power, natural gas, and oil. Canada also utilizes nuclear power, wind energy, and biomass as sources of energy. The country is working towards increasing its use of renewable energy sources to reduce its reliance on fossil fuels.
The main energy source is the sun
solar, wind, geothermal
Uselessness
fat
sun, water, wind.there may be others, but those are some of the most typical
The main sources are hydro-electric, natural gas and oil.
The two main sources of energy in Earth's system are solar energy, which comes from the Sun, and geothermal energy, which comes from the Earth's internal heat.
The Sun
sun, water, wind.there may be others, but those are some of the most typical