7) Over the past decade, total and per capita water use in the United States have:
A.both increased.
B.leveled off and fallen, respectively.
C.fallen and leveled off, respectively.
D.increased and fallen, respectively.
8) The demand for a resource depends primarily on:
A.the supply of that resource.
B.the demand for the product or service that it helps produce.
C.the price of that input.
D.the elasticity of supply of substitute inputs.
9)
Refer to the above diagram showing the domestic demand and supply curves for a
specific standardized product in a particular nation. If the world price for this product is
$1.60, this nation will experience a domestic:
A.shortage of 160 units, which it will meet with 160 units of imports.
B.shortage of 160 units, which will increase the domestic price to $1.60.
C.surplus of 160 units, which it will export.
D.surplus of 160 units, which will reduce the world price to $1.00.
10) given the annual rate of economic growth, the “rule of 70” allows one to:
a.determine the accompanying rate of inflation.
b.calculate the size of the gdp gap.
c.calculate the number of years required for real gdp to double.
d.determine the growth rate of per capita gdp.