Which factor is essential to the initial formation of galaxies, for either of the theories describing galaxy evolution?(1 point) Responses Massive gas and dust clouds collapse. Massive gas and dust clouds collapse. 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. The force of orbiting stars generates collisions.

Answer 1

The essential factor to the initial formation of galaxies, according to both major theories of galaxy evolution, is massive gas and dust clouds collapse. This collapse under the influence of gravity facilitates the initial formation of stars and the structures that will develop into galaxies.