Anytime they feel the government is not doing their job or attending to their needs
Aristotle believed that man could achieve happiness by working on and developing the things unique to his nature, which he specifically believed to be thought and reason. Humans, at least in the time of Aristotle, were the only things capable of complex thought.
Answer:
slow rotations and visible stroms
Let us choose Extra study. Knowing that opportunity cost is related to the opportunities lost by choosing one specific course of events than others. By choosing an extra study and spend hours studying something, my opportunity cost will be the school sports practice hours that could be spent in this time. Another opportunity cost would be the social interaction, in a club, for example, lost because of the extra study decision.