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better explanation of what was very unclear
A '''fuel cell''' is a type of [[battery|electrochemical cell]] where [[hydrogen]] and [[oxygen]] combine to make [[water]] and energy. Scientists discovered fuel cells in the early 1900s, and they will be important in establishing the [[hydrogen economy]].
A '''fuel cell''' is a type of [[battery|electrochemical cell]] where [[hydrogen]] and [[oxygen]] are combined using electrical power to make [[water]] and energy. Scientists discovered fuel cells in the early 1900s, and they will be important in establishing the [[hydrogen economy]].
[[Category: ecology]]
[[Category: ecology]]