Read the following statements about bryophytes : (i) Mosses serve as food for birds and herbivores (ii) Sphagnum, a liverwort, provide peat that have long been used as fuel (iii) Sphagnum, because of their high capacity to hold water is used as packaging-material for trans-shipment of living plant materials (iv) Mosses have a little role during ecological succession (v) Mosses, as they form dense mat, prevent soil erosion How many of the above statements are correct ?