Water is a compound made of the elements Hydrogen and Oxygen.
'earth, air, fire, water' are not "elements" - maybe people thought they were a long time ago, but people used to think the earth was the centre of the universe, too.
Yes...you are indeed correct! I should have not typed so fast, and having a BS in Biology and Chemistry...I should know better than to use that!
Does it change the argument I present?