The primary function of the average green leaf is to carry on photosynthesis - the process by which plants use the energy of sunlight to combine simple substances absorbed from the soil and the air into complex food substances.
(The primary function of the average green leaf; is; to carry on photosynthesis) (plants; use; the energy of sunlight; L:the process) (simple substances; absorbed; from the soil and the air into complex food substances)
The primary function of the average green leaf plants simple substances
is use absorbed
to carry on photosynthesis
the energy of sunlight L:the process
from the soil and the air into complex food substances