Answer:
Social cognition is an area of social psychology that studies what? - How people process, store, and apply information about other people and social situations.
The correct answer is C) the level of output and in the level of prices.
Shifts in the aggregate demand curve can cause fluctuations in the level of output and the level of prices.
In economics, the aggregate demand curve represents the sum of all goods and services demanded by the economy at different price levels. The aggregate demand curve is the graph that shows how many services and products companies and the government are willing to purchase. Its descending slopping describes the inverse relationship between the quantity demanded and the price.
The Qin introduced common coinage, meaning a form of ´fiat´ currency backed by the central government. It was called a ´ban liang´, and they could be issue by local nobles as well as by the emperor. A system of coinage is important for the unification of a massive empire because it facilitates trade and the recollection of revenue for the central government. As such, it becomes easier to raise a common army, which is essential for unification of different warring states.
