(a) Seed dispersed by wind – (i) Maple seed, (ii) seed of madar

(b) Seed dispersed by water – given seeds do not support seed dispersal by water

(c) Seed dispersed by animal – (iii) Xanthium

Seeds of maple and madar have wing-like structure and hence are dispersed by wind.

Xanthium is a spiny seed with hooks which sticks or gets attached to bodies of animals. Hence it is dispersed by animals.