Question

which is a possible sequence in the life cycle of a massive star? (1 point)

• super red giant, protostar, nebula, star, neutron star, supernova
• supernova, star, black hole, planetary nebula, super red giant, protostar
• nebula, protostar, star, super red giant, supernova, neutron star
• planetary nebula, super red giant, protostar, supernova, star, black hole

Explanation:

A massive star's life cycle begins with a nebula (a cloud of gas and dust that collapses to form a star). The collapsing nebula forms a protostar, which matures into a star. As the star exhausts its core fuel, it expands into a super red giant. When the super red giant can no longer sustain nuclear fusion, it explodes in a supernova. For a massive star, the remaining core can collapse into a neutron star (or black hole for even more massive stars). The other options have stages in the wrong chronological order.

Answer:

C. nebula, protostar, star, super red giant, supernova, neutron star