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.
Because the British government was taxing them heavily.
Answer: He is credited with bringing Christianity to parts of Ireland and was probably partly responsible for the Christianization of the Picts and Anglo-Saxons.
Explanation:
It had the earth at the center of the world