Before revision: Characteristics SEM images showing the presence of pores in hardwoods (oak, top) and absence in softwoods (pine, bottom) Softwood is wood from gymnosperm trees such as pines and spruces.
After revision: ″dFf==Characteristics== SEM images showing the presence of pores in hardwoods (oak, top) and absence in softwoods (pine, bottom) Softwood is wood from gymnosperm trees such as pines and spruces.