What process of change describes a woman who quits smoking after seeing an aunt die of lung cancer?

The given case describes the situation of emotional arousal.

The emotional arousal is the state, in which the alertness of the body increases due to the increase in the emotions.

In this case, the death of the woman's aunt, leaves a emotional remark to her. As she knows that smoking causes lung cancer, she feels very emotional and quits smoking.

Solar tracking or phototropism refers to the plant’s growth in response to light. It most occur in plants but can also happen in fungi organisms. Auxin is the chemical that reacts to this process and they are found farthest from the light source. Due to this plants tend to have elongated cells that respond to external stimuli. There are two types of this phenomena and they are positive phototropism (growth towards the light) and negative phototropism (growth away from the light).