Question

Beginning with a nebula, which is the next stage in the life cycle of a star?

Option 1: Red giant
Option 2: White dwarf
Option 3: Protostar
Option 4: Supernova

Answer 1

After a nebula, the next stage in a star's life cycle is the protostar phase, where gravitational collapse leads to the formation of a hot core that will begin nuclear fusion.

Step-by-step explanation:

The next stage in the life cycle of a star after beginning as a nebula is to become a protostar. During this stage, the clouds of dust and gas in the nebula collapse under gravity, forming a hot core that will eventually initiate nuclear fusion. After the protostar phase, the star enters the main-sequence phase where it spends most of its life fusing hydrogen into helium, producing energy.