A red heart stuck in a crack in the wooden surfaceA red heart stuck in a crack in the wooden surface
Natural landscape with the reflection of a tree on the water surfaceNatural landscape with the reflection of a tree on the water surface
We are in a hurry on sails in the water surface to landWe are in a hurry on sails in the water surface to land
Lotus water lilies on the swamp surface of the waterLotus water lilies on the swamp surface of the water
The water surface against the background of two shoresThe water surface against the background of two shores
The fiery sunset is reflected in the water surface of the lakeThe fiery sunset is reflected in the water surface of the lake
В математике: граница, отделяющая геометрическое тело от внешнего пространства. Наружная сторона чего-н..