Final answer:
Marquez's style is called Magic Realism, a narrative technique that presents fantastic elements in a realistic setting. The work 'A Very Old Man With Enormous Wings' exemplifies this style. The style depicting characters with no control over their actions is naturalism.
Step-by-step explanation:
The style often associated with Gabriel Garcia Marquez that mixes realistic and fantasy elements is called Magic Realism. This writing style is characterized by the introduction of fantastical elements into otherwise mundane settings, presented in a very matter-of-fact manner. A quintessential example of this style is found in Marquez's work A Very Old Man With Enormous Wings, where an angel is depicted in such a realistic way that its magical nature seems normal and unremarkable within the story's context.
Answer to the second question: The artistic style where characters are depicted as behaving in ways over which they have no control and often with impersonal depictions is naturalism. This style often portrays humans as subject to natural forces beyond their control, like the environment or heredity, influencing their behavior.