Which factor is essential to the initial formation of galaxies, for either of the theories describing galaxy evolution?(1 point)

Question

Responses

Small lumps of material merge into larger clumps.
Small lumps of material merge into larger clumps.

The force of orbiting stars generates collisions.
The force of orbiting stars generates collisions.

Massive gas and dust clouds collapse.
Massive gas and dust clouds collapse.

Gravity acts on existing material, shaping it into a new form.

Answer 1

The essential factor to the initial formation of galaxies, according to both theories describing galaxy evolution, is:

Massive gas and dust clouds collapse.

This collapse leads to the formation of stars and ultimately galaxies.