Which of these events can happen when galaxies collide?(1 point) Responses Galaxies triple in size. Galaxies triple in size. Galaxies disappear. Galaxies disappear. Galaxies destroy their stars. Galaxies destroy their stars. Galaxies merge.

Galaxies merge.

Which galaxy will collide with the Milky Way in several billion years?(1 point) Responses Andromeda Galaxy Andromeda Galaxy Sagittarius Dwarf Galaxy Sagittarius Dwarf Galaxy Local Group Local Group Large Magellanic Cloud

Andromeda Galaxy

Which is the Milky Way?(1 point) Responses a galaxy destroyed in a collision a galaxy destroyed in a collision a galaxy containing Earth a galaxy containing Earth a dwarf galaxy a dwarf galaxy a galaxy that does not include our solar system

a galaxy containing Earth and our solar system

When galaxies collide, one possible event that can happen is that galaxies merge.

When galaxies collide, several different events can occur. One possible outcome is that the galaxies may merge together. This happens when the gravitational forces between the galaxies cause them to come together and eventually combine into a single, larger galaxy.

To answer the question, we need to determine which of the given options is a possible event when galaxies collide. Let's go through each option:

1. Galaxies triple in size: This option is not a valid outcome of galaxy collisions. When galaxies collide, they may increase in size due to the merging process, but they generally do not triple in size.

2. Galaxies disappear: This option is also not accurate. When galaxies collide, they do not simply disappear. However, the structures of the colliding galaxies could be altered or disrupted during the collision.

3. Galaxies destroy their stars: While galaxy collisions can have a significant impact on the stars within the galaxies, it is not correct to say that galaxies destroy their stars as a direct result of the collision.

4. Galaxies merge: This option is correct. When galaxies collide, one possible outcome is that the galaxies merge together, forming a new, larger galaxy.

Based on the analysis, the correct option is "Galaxies merge."