The trees are built mostly of air and takes carbon dioxide out of the air, adds in hydrogen from water, a trace amount of other chemicals. The it all together with the energy of sunlight to build all the stuff that makes it a tree. A tree is a machine that turns air into tree. The trees literally surrounded by solid air, by air that’s been condensed and solidified over tens, hundreds, or even thousands of years into wood. Life changes the universe, molds it into unique, amazing, highly-ordered structures like trees. So the seed seperates the carbon from the oxygen, and then it mixes the carbon. The carbon dioxide from the air forms 93% by weight of the sugar formed by the tree, the hydrogen from water forms 7%. The oxygen that’s released as waste gas is the oxygen from water.