A hedge is a row of shrubs or dwarf trees planted closely at regular intervals, which forms a living fence or boundary. Hedges are commonly used for privacy, decoration, and protection against wind or animals.
(A) Edge – Incorrect. Edges are borders around flower beds or lawns but not necessarily a fence.
(B) Arch – Incorrect. Arches are curved structures often used as garden entrances or supports.
(C) Topiary – Incorrect. Topiary involves trimming plants into ornamental shapes.
(D) Hedge – Correct. Row planting forming a fence or boundary.