If proved reserves of a mineral amount to twelve years of use at the current rate of consumption,
a. it is likely, though not certain, that we will run out of that mineral in about twelve years.
b. we are likely to run out of the mineral in less than twelve years if our rate of use has been increasing.
c. if the good becomes more scarce relative to supply in the future, its price will rise and thereby encourage both conservation and exploration.
d. if proved reserves diminish, lower prices will extend the day of exhaustion well into the future.
C
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Of the following, the most rapid rise in health care costs in the United States can be attributed to
A) the cost of malpractice lawsuit settlements. B) the cost of malpractice insurance. C) the cost to treat uninsured patients. D) slow growth in labor productivity in health care.
The price elasticity of supply
A) is the slope of the supply curve. B) is the percentage change in quantity supplied divided by the percentage change in price. C) is always negative. D) does not vary between the long and the short run.