Final answer:
Fuel cell-powered cars, such as hydrogen fuel cell–powered cars, only emit water as the waste product. They are more environmentally friendly and energy-efficient compared to gasoline-powered cars.
Step-by-step explanation:
Fuel cell-powered cars, such as hydrogen fuel cell–powered cars, are different from gasoline-powered cars because they only emit water as the waste product. Unlike gasoline-powered cars that emit pollutants such as carbon dioxide, nitrogen oxides, and particulate matter, fuel cell-powered cars produce no harmful emissions.
This is because fuel cells convert hydrogen and oxygen into electricity through an electrochemical process, and the only byproduct of this reaction is water. This makes fuel cell-powered cars more environmentally friendly and reduces air pollution.
Furthermore, unlike gasoline-powered cars that rely on combustion engines, fuel cell-powered cars use hydrogen and oxygen to generate electricity directly, resulting in higher energy efficiency.