To prevent erosion.
Not all hills have grass. Not all hills have grass because, take it for example. When you go to a dessert there are hills; sand hills so the answer is no.
hills have grass on them because of the soil pervides the grass such as in a laun or anyother place where growss natually
For all manner of reasons; ie, lawns in gardens, feeding for farm animals and to stop hills from having landslides. These are just a few reasons !
you idiot, they are grown on stupid hills!
tea
gero hills
grass or roads
no not necessarily
They are grown on hills with little motes around them about 4 inches deep ...
They are grown on hills with little motes around them about 4 inches deep ...
Hills are tall mounds of earth covered in grass or mud.
roads