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 they tried to win that was they doing difficulties things .
It was "the Golden Horde" who undertook the task of conquering Russia, although it should be noted that many other groups have attempted to take this land in the past as well.
