Conversation so far:
where does the energy to hydrolyze water come from
The energy to hydrolyze water comes from oxidized chlorophyll.
what are the states of water?
Water's states are Liquid, solid, steam.
how much water is found on earth?
Water covers 71% of the Earth's surface. Earth's approximate water volume is 1.386 × 109 cubic kilometers (3.33 × 108 cubic miles).

Question: how is the substance used in transportation?
Self-contained rewrite: how is water used in transportation?