The figure below shows the supply and demand curves for oranges in Smallville. 
At a price of $4 per pound there will be an excess ________ of ________ pounds of oranges per day.
A. demand; 20
B. supply; 20
C. demand; 30
D. supply; 10
Answer: A
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Refer to the figure below.________ inflation will eventually move the economy pictured in the diagram from short-run equilibrium at point ________ to long-run equilibrium at point ________, 
A. Rising; B; C B. Falling; A; C C. Falling; A; B D. Rising; A; C
The Great Depression of the 1930s led to a revolution in macroeconomic thinking, following the work of
A. Arthur Laffer. B. Milton Friedman. C. Adam Smith. D. John Maynard Keynes. E. David Ricardo.
The difference between the price the seller receives for a good or service and the minimum price he would be willing to accept for that unit is called: a. the total gains from trading that unit. b. the gain in producer surplus
c. the gain in consumer surplus. d. the total surplus.
Which of the following is the most widely used energy source in the world?
A. Fossil fuels B. Hydroelectric energy C. Nuclear energy D. Wind power