Question

what is a main sequence star? why causes a star to die? what determines the way in which a star dies? what happens to a low - mass star like the sun when it dies? what happens to a high - mass star when it dies?

Explanation:

A main - sequence star is in a stable phase of its life, fusing hydrogen into helium in its core. A star dies when it runs out of nuclear fuel for fusion reactions. The mass of a star determines how it dies. Low - mass stars like the Sun will shed their outer layers to form a planetary nebula and leave behind a white dwarf. High - mass stars will end in a supernova explosion, leaving behind a neutron star or a black hole.

Answer:

1. A main - sequence star is a star in the stable hydrogen - fusing phase of its life cycle.
2. A star dies when it exhausts its nuclear fuel for fusion.
3. The mass of a star determines the way it dies.
4. A low - mass star like the Sun will shed its outer layers to form a planetary nebula and leave a white dwarf.
5. A high - mass star will end in a supernova explosion, leaving a neutron star or a black hole.