The speed by which nuclear fusion is carried out depends on
How concentrated hydrogen is
The star size
The helium concentration
A red dwarf star has never died
The Sun is brightener now than in the dinosaur´s age
At atomic level, when will be the end of the Sun?
When the Sun is run out of He
When the Sun is run out of H
When the Sun is run out of C
When the Sun ends, it will transform into
Planetary nebula
White dwarf
Black dwarf