Whether a hydrogen-based energy system is environmentally cleaner than a fossil fuel system depends on ________.
A)the car driven
B)the source of energy used to produce the hydrogen
C)the source of oxygen used for the process
D)governmental incentives for research

Question

Quizplus · Accepted Answer

The source of energy used to produce the hydrogen is essential in determining the environmental cleanliness of a hydrogen-based energy system. If the energy used comes from renewable sources like wind or solar, then the system can be much cleaner than fossil fuels. However, if the energy used comes from non-renewable sources like coal or natural gas, then the system may not be any cleaner than a fossil fuel system. The other options provided do not have as significant of an impact on the environmental cleanliness of the system.

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