Auto engineer: Hopeful researchers claim that one day cars will be powered by hydrogen, which will be extracted from water using renewable energy sources. It takes a tremendous amount of energy to extract hydrogen from water, though.
Considering the 700 million automobiles now in use, the goal of using renewable resources to obtain hydrogen to power them should be abandoned. We could generate enough energy to extract that amount of hydrogen with a massive deployment of nuclear power plants, but those require nonrenewable resources and are unpopular in many areas.
The auto engineer’s recommendation to abandon researchers’ goal of powering cars with hydrogen extracted using renewable energy is based on which of the following assumptions?

Question

Examsnet · Accepted Answer

Correct Answer is :  No renewable energy sources could provide the power necessary to create sufficient fuel for the number of automobiles currently in use

GMAT Verbal Reasoning Practice Test 7