Whether a hydrogen-based energy system is environmentally cleaner than a fossil fuel system depends on ___________
A)the source of energy used to produce the hydrogen
B)the amount of fossil fuels that are invested in long- term storage
C)governmental incentives for research
D)the source of oxygen used for the process
E)the car driven

Question

Quizplus · Accepted Answer

The environmental impact of a hydrogen-based energy system largely depends on how the hydrogen is produced. If renewable energy sources are used, it is cleaner than fossil fuels.

Whether a Hydrogen-Based Energy System Is Environmentally Cleaner Than a Fossil