There are two distinct systems working within each induvidual Peachtree City grass plant structure.  The roots and leaves of the plant have two very different jobs to manage withing the structure.  The root system absorbs oxygen and nutrients from the soil and then produce carbon dioxide as a waste product.  The roots also absorb nutrients from the leaves which is then stored in the roots expansive system below the soil surface.  The leaves of a Peachtree City grass plant structure use the carbon dioxide waste and sunlight to produce energy through a process known as photosynthesis.  During this process, oxygen is expelled as a waste product from the leaves of the grass plant.  This is the oxygen we breathe!  Together, the roots and the leaves form one complete biological system.