3 ms·Ummmm, and undo millions of years of anerobic generation of water molecules by planktons and algae?by egberts1 1y agoUmmmm, and undo millions of years of anerobic generation of water molecules by planktons and algae?lovich 1y agoWhen you burn hydrogen as fuel it produces water as the product of the reactionegberts1 1y agoUmmmmm, it isn't an 100% close-loop cycle. Hydrogen affixes to other molecules.