Even the nitrogen started out as atmospheric nitrogen that was 'fixed' (processed into ammonium and nitrate compounds by soil bacteria).
As I understand it, most but not all of it arrives that way. I'm open to correction though.
Since you seem to think you know what the heck "filtered properties made of the solid trees" are, perhaps you can explain it to the rest of us. I'm guessing that CD's brain is made from the filtered properties of solid %*^*$(*.[
No, I was objecting to the notion that trees were mostly made of the dust of the Earth; I have no idea what the rest of it is about.