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The Sun is the main and most important energy source.
solar energy
nonrenewable sources of energy
Coal
The sun.
wood
Sunlight is the most important energy source in an oxygen carbon dioxide life cycle.
The source of energy for most organisms is chemical energy and sunlight.
fule fossile is the most used energy source
The Sun is the main and most important energy source.
Nuclear energy that is the source of sun energy which in turn is the source of fossil and renewable energies.
The sun is the main source of energy on earth.
The carbohydrates are the main source of energy from the food you eat, becausethey are most easily converted to useable energy. Fats are the second energy source used.Proteins are the third and most difficult source to be converted to energy.
Glucose is the most common energy source in cellular respiration.
Yes fats are the most calorific energy source.
Wind
Sunlight