||Bedding planes that are exposed (either on the surface or at depth) often form ledges that have a high habitat value and support
colonizing plants and animals. Ledges often provide a more level surface than the bounding slopes. Ledges in the intertidal
zone can form shelves or projections of rock (that are much longer than they are wide) on a rock wall or cliff face. They
are formed along a coast by differential wave action on softer rocks and may be eroded by biological and chemical weathering.