According to the lecture, hormone changes are often responsible for mood swings in teenagers.

True.  During this phase in their lives, they begin to experience changes in their bodies.  These changes can also be a new experience that teenagers will have difficulty in understanding.  This can cause mood swings due to the stress of adjusting to the changes in their bodies.

true                                                                                                                                r                                                                                                                                                  u                                                                                                                                                         e