How do fuel cells generate electricity?, Combustion, Fusion, Organic reaction, Electrochemical reaction, What do fuel cells emit?, Oxygen, Hydrogen, Water, Nothing, When was the first fuel cell invented?, 1701, 1839, 1901, 1879, How do you boost the amount of electricity a fuel cell system produces?, Adding oxygen, Adding hydrogen, Adding protons, Adding cells, When were fuel cells first used in space?, Apollo Program, Project Mercury, Space Shuttle Program, Gemini Program.

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