Which of the following is a characteristic of active galaxies?

Question

A: They generally exhibit no signs of explosive activity.

B:Their energy emission cannot be explained as the accumulated emission of their stars.

C: Their energy output is steady in time

D: They are generally less luminous than normal galaxies.

Answer 1

Answers A, C, and D are not true. B is true: there is significant radiation from active regions that is not explained by the normal radiation from stars.