Question

which of these events can happen when galaxies collide? (1 point)

galaxies triple in size.

galaxies merge.

galaxies disappear.

galaxies destroy their stars.

Explanation:

When galaxies collide, they can interact gravitationally and merge into a single galaxy. Galaxies don't typically triple in size instantly, disappear (as matter is conserved), or destroy their stars en masse during collisions (star - star collisions are rare, and the gravitational interaction mainly leads to merging or distortion, not star destruction).

Answer:

B. Galaxies merge.