Evidence that tidal interactions and collisions of galaxies may make ordinary galaxies active is that
A)many active galaxies are distorted.
B)some active galaxies have companions.
C)many active galaxies are distorted and some active galaxies have companions.
D)active galaxies are neither distorted nor have companions.

Question

Quizplus · Accepted Answer

Both tidal interactions and collisions can cause distortion in galaxies, and many active galaxies are observed to be distorted. Additionally, some active galaxies have companions, indicating that they may have undergone interactions or mergers with other galaxies.

Evidence That Tidal Interactions and Collisions of Galaxies May Make