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Fuel-cell cars use hydrogen gas and release what into the atmosphere.?
Water vapour.
Are cars that use hydrogen fuel cells available yet?
Fuel Cell vehicles are available in limited quantities, e.g. http://world.honda.com/FuelCell/ , but the major challenges are that the cells themselves aren't really competitive with other fuel sources yet, and places to refuel the vehicles are scarce.
How can cars pollute the rivers?
they release fossil fuels in to the atmosphere, fossil fuels is mainly coal and they pollute the atmosphere and rivers as you said.
Are all hydrogen cars with fuel cell or they are some hydrogen cars without fuel cell?
There are no commercially available hydrogen fueled cars.
Is there research on hydrogen powered cars nowadays?
yes, for sure. hydrogen cars are created today.
When will we have hydrogen cars?
Honda has hydrogen car. Toyota has hydrogen car. gm is working on hydrogen car.
Are hydrogen cars as good as petrol or diesel cars?
Not really because there are few filling station to fill them up at. There are no hydrogen cars being sold at this time.
How long does a hydrogen car last?
Who knows as there are no hydrogen cars in production.
How to work hydrogen car?
CArs will not run efficiently on hydrogen gas
Where is water formed?
Hydrogen and oxygen readily combine, releasing energy. If you have ever heard of hydrogen powered cars--this is how they expect to run. The oxygen is freely available in the atmosphere via photosynthesis. The hydrogen, however, must be cracked from water (a net loss) or from hydrocarbons--the chief source of which is fossil fuel.
Why are hydrogen cars better than petrol cars?
less pollution
Are there any cars run with hydrogen?
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