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.
They were producing items and we're selling them at a cheaper price.
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The Siege of Leningrad is a event which took place during WWII. This was a was a prolonged military blockade undertaken from the south by the Army Group North of Nazi Germany against the Soviet city of Leningrad on the Eastern Front in World War II.
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The Constitutional Convention (also known as the Philadelphia Convention the Federal Convention, or the Grand Convention at Philadelphia) took place from May 25 to September 17, 1787, in the old Pennsylvania State House (later known as Independence Hall because of the adoption of the Declaration of Independence there
