Which of the following is true about renewable resources?
a. Land resources include oil, coal, and natural gas that have a fixed stock.
b. Land resources include irrigation networks and wastewater treatment plants that utilize water
c. Land resources include air filtration systems in buildings that renew and refresh polluted air from the outside.
d. Land resources include forests, range lands, and marine fisheries that naturally regenerate.
d
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Refer to the graphs, in which the numbers in parentheses near the AD1, AD2, and AD3 labels indicate the level of investment spending associated with each curve, respectively. All numbers are in billions of dollars. The interest rate and the level of investment spending in the economy are at point D on the investment demand curve. To achieve the long-run goal of a noninflationary full-employment output Qf in the economy, the Fed should try to:
A. Decrease aggregate demand by increasing the interest rate from 2 to 4 percent
B. Decrease aggregate demand by increasing the interest rate from 4 to 6 percent
C. Increase aggregate demand by decreasing the interest rate from 4 to 2 percent
D. Increase the level of investment spending from $120 billion to $150 billion
The most commonly used measure of an economy's output is:
A. the rate of employment. B. the Dow Jones stock market index C. gross domestic product. D. the rate of inflation.