Question ID:PT70 S4 Q12 Passage:Though Earth's human population is increasing, it currently uses only a relatively small fraction of the supply of fresh water. Thus, claims that water shortages will plague humankind in the near future unless population growth trends change are simply mistaken. Stem:Which one of the following, if true, most seriously weakens the argument above? Correct Answer Choice:BChoice A:Population growth trends are notoriously hard to predict with reasonable accuracy. Choice B:The amount of fresh water available to meet the needs of Earth's population varies significantly from region to region. Choice C:Not all of Earth's population will adopt water conservation methods in the near future. Choice D:If Earth's population continues to increase, it will eventually outstrip all available resources. Choice E:The percentage of fresh water used for agriculture is likely to grow more quickly than is the percentage used for industry.