water vapor
Water vapour.
Yes, cars release carbon dioxide into the atmosphere as a byproduct of burning gasoline or diesel fuel.
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.
they release fossil fuels in to the atmosphere, fossil fuels is mainly coal and they pollute the atmosphere and rivers as you said.
There are no commercially available hydrogen fueled cars.
yes, for sure. hydrogen cars are created today.
Honda has hydrogen car. Toyota has hydrogen car. gm is working on hydrogen car.
Not really because there are few filling station to fill them up at. There are no hydrogen cars being sold at this time.
CArs will not run efficiently on hydrogen gas
Who knows as there are no hydrogen cars in production.
less pollution
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