(of aplant) to usecarbondioxidefrom theair,waterfrom theground, andenergyfrom thelightof thesuntoproducefoodfor itself andoxygen:
Thegrassesneedlightto photosynthesize.
Submergedriceplantsneed to beableto photosynthesize underwater.
Tallbladesofgrasshave moresurfaceareaexposedto thesun,enablingthem to photosynthesize moresugarsandstarchesforgreaterrootgrowth.