If O2 is an input for Respiration, what needs to be added to make O2 ->H20?

hello

answer: collecting information/data

reason: the student is going around and asking people questions to collect data

i hope this

the main thing i would use is bricks because if there is a hurricane, there is a great possibility for the house to still stand. and i would also use plexiglass windows instead of regular windows because plexiglass isn't prone to breaking.