Orlex
Its something we all have in common. There for I elect to believe in water.
rudeboy
god
RobbyG
Lets dig a little deeper than simply the first requirement for existence of human lifeforms.
I say: Gravity (without density nothing would have feel and you and I would be a blurry set of atoms floating into space)
;)
raidah
water is an interesting element. no life without, yet used in a wrong way it came you sick without even touching your body.
i believe in good old solid earth
Sharp
wel water is Importent for living beling's, although I still did not drink a single glass of water since week's, BUT... it's the main thing for live!.....