coal was the main source at that time
In 1855, the main sources of fuel for energy were coal, wood, and some small-scale use of oil. These sources were primarily used for heating, cooking, and powering early industrial machinery.
Petroleum is the main source of energy for transportation.
fossil fuel
Petroleum.
petroleum
fossil fuel
ATP is called the energy source (battery) of the cell.
The main source of energy for the body comes from glucose, which is derived from carbohydrates in the diet. Glucose is utilized by cells for various functions and is the primary fuel for metabolic processes in the body.
The main fuel source for the work of the cell is the mitochondria.
The main fuel source for the work of the cell is the mitochondria.
The main fuel source for the work of the cell is the mitochondria.
Carbohydrates provide the main source of energy for the body, particularly for the brain and muscles. They are broken down into glucose, which is used by the body for fuel and to support various physiological functions.