A cactus stem is used for storing water.
H20 bottled water was generally consumed last year.
A cactus stem is used for storing h20.
A cactus stem is used for storing what?
Options:
(a) roots
(b) rain
(c) cactus seeds
(d) CO2
(e) RNA
(f) calories
(g) H20
(h) h2o