| A | B |
| pollution | things we do to increase our carbon footprint |
| electrolyte | located between the anode (-) and cathode (+) |
| combustion | burn fossil fuels for power, contributes to pollution |
| catalyst | used to coat the electrolyte |
| efficient | how much of the energy you get back that it stored in the fuel |
| compress | to be pushed together (like hydrogen and oxygen) |
| capacity | how much something can hold |
| mass production | making many of the same item, typically on an assembly line |