Most of the mass of plants comes from the atmosphere, not the soil. 95%+ of a gi...

		saalweachter on June 7, 2014 \| parent \| context \| favorite \| on: A sealed bottle garden thriving after 40 years wit... Most of the mass of plants comes from the atmosphere, not the soil. 95%+ of a given plant is oxygen, hydrogen, and carbon. The soil provides trace elements and a place from which to absorb water.