Berth near the smooth surface of the lake at sunsetBerth near the smooth surface of the lake at sunset
White running clouds over the mountains and the water surfaceWhite running clouds over the mountains and the water surface
The surface of the lake against the background of a very beautiful sunsetThe surface of the lake against the background of a very beautiful sunset
Natural landscape with the reflection of a tree on the water surfaceNatural landscape with the reflection of a tree on the water surface
The surface of the water with a rabbit and the skyThe surface of the water with a rabbit and the sky
В математике: граница, отделяющая геометрическое тело от внешнего пространства. Наружная сторона чего-н..