Which event takes place first in the stages before the birth of a star?

Gravity pulls gas and dust together.
A protostar forms as mass increases.
Nuclear fusion begins under high pressure.
A protostar collapses and becomes denser.

1 answer

The event that takes place first in the stages before the birth of a star is "Gravity pulls gas and dust together." This initial process leads to the formation of a protostar as the material accumulates.