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

Question

Responses

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

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

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

Massive gas and dust clouds collapse.

Answer 1

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

Massive gas and dust clouds collapse.

This process leads to the formation of protogalaxies and is a fundamental aspect of how galaxies begin to form in the universe.