They're generally smooth.
Smooth is to rough as calm is to turbulent.
Rough with the Smooth was created in 1995.
The difference between rough and smooth is the texture. Rough things have a bumpy, abrasive texture. Smooth things have are not rough.
chicken bone
steam with rough bark
rough
Steel can be both. It can be smooth or rough. It depends how it is made...
Its a bit of both but I think it's hard
Smooth surface
Rough ER has ribosomes on it, smooth ER does not
rough- ribosomes attached smooth- no ribosomes
rough