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A mining company has the opportunity to extract from a coal reserve this year for a profit of $40 per pound.The current market rate of interest is 5 percent.The present value of this future extraction is


A) $36.
B) $38.
C) $40.
D) $42.

E) A) and C)
F) All of the above

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In recent years, per capita energy use in developed countries such as the United States has


A) increased.
B) decreased.
C) leveled off.
D) increased and then decreased.

E) A) and D)
F) B) and C)

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If per-capita energy usage has leveled off while per capita GDP has risen, then it must mean that each dollar of output produced required a larger amount of energy.

A) True
B) False

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Which of the following statements is true about falling birthrates?


A) They tend to lag behind falling death rates, allowing population growth to continue for at least one or two more generations.
B) They tend to precede declines in death rates, causing a temporary dip in population before it stabilizes in a generation or two.
C) They tend to lag behind declining standards of living.
D) They always cause population to decline.

E) A) and C)
F) None of the above

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An example of a renewable resource would be


A) oil.
B) coal.
C) iron ore.
D) aquifers.

E) A) and D)
F) All of the above

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A rising standard of living will


A) necessarily reduce the population by reducing the birthrate.
B) increase the birthrate.
C) reduce the birthrate, but population may continue to grow if the death rate falls more quickly.
D) reduce the birthrate initially but will increase the birthrate significantly at higher levels of income as people can afford to have more children.

E) B) and C)
F) C) and D)

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Which fishery product in the U.S.had the greatest market value in terms of its catch in 2014?


A) blue crab
B) Pacific cod
C) oysters
D) lobster

E) A) and B)
F) B) and C)

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Over the past decade, total and per capita trash generated in the United States have


A) both increased at about the same rate.
B) increased slightly and leveled off, respectively.
C) both fallen.
D) leveled off and fallen, respectively.

E) A) and B)
F) None of the above

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The Economist magazine's Commodities Price Index tracks the prices of the most


A) important finished goods that are traded internationally.
B) important minerals that are traded internationally.
C) important productive resources that are traded internationally.
D) heavily traded agricultural-based products.

E) B) and C)
F) None of the above

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Which of the following is considered a renewable natural resource?


A) aquifers
B) coal
C) petroleum
D) iron

E) A) and D)
F) None of the above

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Renewable resources


A) can never be exhausted permanently.
B) can be exhausted if harvest rates exceed replenishment rates for an extended period.
C) can be exhausted if replenishment rates exceed harvest rates for an extended period.
D) will tend to be overharvested when they are private property.

E) B) and C)
F) C) and D)

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In countries like Botswana and Zimbabwe, local villages have been given property rights over local elephants with the result that elephant populations


A) have been decimated as villagers try to maximize short-run profit.
B) have grown as villagers have protected the elephants to support their tourist industry.
C) have grown exponentially, with adverse environmental impacts.
D) are in serious decline, as ivory prices have risen.

E) A) and B)
F) All of the above

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About what minimum price per barrel of oil is necessary for biodiesel to become economically viable as an alternative energy source?


A) $30 per barrel
B) $50 per barrel
C) $100 per barrel
D) $80 per barrel

E) All of the above
F) B) and C)

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If the price of oil falls, the economic viability of alternative energy sources also tends to fall.

A) True
B) False

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Overextraction of a resource in the present can occur because


A) there is a user cost.
B) there is an extraction cost.
C) users can benefit from conservation.
D) property rights are not clearly defineD.

E) B) and C)
F) A) and B)

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When diamonds are mined in conflict or war-torn areas, there is


A) more loss from auctioning off the resource.
B) minimal waste of this resource.
C) strong incentive for conservation.
D) strong incentive for overmining.

E) A) and B)
F) None of the above

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The "replacement rate" is the birthrate necessary to


A) keep a nation's population from decreasing.
B) keep an able-bodied workforce in the economy.
C) maintain the productivity level in an economy.
D) maintain the standard of living of a nation.

E) B) and C)
F) C) and D)

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About three-fourths of U.S.electricity is generated using coal, natural gas, and petroleum.

A) True
B) False

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In the United States in 2014, one million BTUs of energy yielded worth of goods and services (in 2009 dollars) .


A) $57.90
B) $63.09
C) $127.37
D) $162.07

E) B) and C)
F) A) and B)

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Average per capita water consumption in the United States was approximately how many gallons per day in 2010?


A) 355
B) 764
C) 1,941
D) 1,134

E) A) and B)
F) A) and C)

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