What advantages do the fuel cells have over primary and secondary batteries?
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3
they r efficient
ecofriendly
give out residues that can be reused
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2
Explanation:
Primary batteries contain a limited amount of reactants and are discharged when the reactants have been consumed. Secondary batteries can be recharged but it take a long time. Fuel cell run continuously as long as the reactants are supplied to it and products are removed continuously.
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