Hydrogen is the main source and Helium second.
The main fuel for stars is hydrogen.
The primary fuel for all stars is hydrogen
The main source of energy in the Sun and other stars is fusion of hydrogen atoms into helium atoms.
No, red giants are generally older than main sequence stars, as red giants have no hydrogen left for fuel, and burn helium instead. where as Main Sequence stars burn hydrogen for fuel.
Hydrogen is the main source and Helium second.
The main fuel for stars is hydrogen.
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.
The primary fuel for all stars is hydrogen
coal was the main source at that time
The main source of energy in the Sun and other stars is fusion of hydrogen atoms into helium atoms.
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.
hydrogen
Petroleum is the main source of energy for transportation.