Central banks are responsible for the collection and the replacement of currency from circulation.

a. true

b. false

The correct answer is letter "A": True.

Explanation:

Central banks are the financial institutions in charge of the monetary policy of their country on behalf of the central government. They regulate the money supply and the interest rates to maintain a country's economy the closest to its equilibrium level. In the United States, the central bank is the Federal Reserve (Fed). Central banks also collect and replace the currency in circulation.

the correct answer is economics is a game without winners or losers.

unlike sports or games economic is a game without losers or winner rather it is a game where everyone wins. parties of business doing businesses exchange money with each other and hence exchange is done on the basis of goods. one party takes the goods and other sales it so there is winner on both sides. each party values more highly the good it gets than the good it gives up. both sides exchange only because both intend to increase their value. so there is no concept of lose or win.

i think the answer is a. science center.