Question

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.

Answer 1

(A) Gravity pulls gas and dust together.

Step-by-step explanation:

Answer 2

Gravity pulls gas and dust together.

Step-by-step explanation:

nebula (as the first stage is called): the first stage before the birth of star is seen by a slow rotating, clouds of cold gas and dust. the nebula condenses into a huge globule of gas and dust which shrink under its own gravity