What process is most likely to turn a dormant black hole at the centre of a galaxy into an active galactic nucleus?
A)a galaxy collision
B)a quasar phase
C)a burst of star formation
D)a nearby supernova

Question

Quizplus · Accepted Answer

When two galaxies collide, their black holes merge and the resulting black hole can become active, emitting large amounts of energy and radiation as an active galactic nucleus. This is because the collision causes a lot of gas and dust to fall into the black hole, which triggers the release of energy.

What Process Is Most Likely to Turn a Dormant Black