How does a star form and what determines its lifespan?Read more: How_does_a_star_form_and_what_determines_its_lifespan
Mainly its temperature.
yes yes it does
Mass
yes yes it does
Mass decides a stars ultimate fate.
No, there would have to be an atmosphere and water as well.
It's original mass. See related for more information
I assume you mean, "how long a star lives". That depends mainly on the star's mass, with more massive stars using up their fuel way faster than less massive ones.
The temperature determines the color of the star!:)
It all depends on mass. If its over the point of where a neutron star can form then it forms a black hole. If its below it then it'll form a neutron star.
Millions Of Years