Question

1. which of the following describes the colliding of two or more galaxies?

elastic collision
planetary collision
galactic collision
barred - spiral collision

Explanation:

• An elastic collision is a type of collision in physics where kinetic energy is conserved. It is not related to galaxies colliding.
• A planetary collision refers to planets colliding, not galaxies.
• A barred - spiral is a type of galaxy structure, not a type of collision.
• Galactic collision is the term used to describe the collision of two or more galaxies.

Answer:

galactic collision