What causes a supernova?(1 point)

force of gravity
force of gravity

energy of a nebula
energy of a nebula

energy of heat
energy of heat

force of a nebula

The correct option is: energy of a nebula

The correct answer is: force of gravity

The correct answer is "energy of a nebula." A supernova is a powerful explosion of a star that occurs at the end of its life cycle. It is caused by the release of an enormous amount of energy stored within a star's core, primarily derived from nuclear fusion reactions. This energy is generated through the fusion of lighter elements, such as hydrogen and helium, into heavier elements like carbon, oxygen, and iron. Over time, as nuclear fuel runs out, the core of the star becomes unstable, leading to a rapid collapse of its core and an explosive release of energy. This energy is what we observe as a supernova.