4 ms·
Trees are made of carbon, humans are not made of oxygen (humans are also made of carbon).
by pliny 8y ago
Trees are made of carbon, humans are not made of oxygen (humans are also made of carbon).
- philipkglass 8y agoBy mass, trees contain more oxygen than carbon. So do humans. Water is 89% oxygen by mass. Cellulose is 49% oxygen by mass. Dry wood contains a bit more carbon than oxygen, but living trees do not.