Galaxies may contain a supermassive black hole at their center but ___________ an active nucleus because of ____________ into the black hole

Question

Quizplus · Accepted Answer

Galaxies with a supermassive black hole at their center can show an active nucleus if there is mass inflow into the black hole, leading to accretion and the emission of radiation. Therefore, the correct choice is A, as it states that the galaxy will show an active nucleus because of mass inflow. Choice B is incorrect because it suggests that the presence of a supermassive black hole does not guarantee the presence of an active nucleus, which is not necessarily true. Choice C is also incorrect because a lack of mass inflow would not produce an active nucleus, but instead a quiescent or dormant black hole.

Galaxies May Contain a Supermassive Black Hole at Their Center