Abstract object in the form of a ball on a wooden surfaceAbstract object in the form of a ball on a wooden surface
Futuristic map of the earth's surface in green lightFuturistic map of the earth's surface in green light
The bear in the apocalypse is walking on the surfaceThe bear in the apocalypse is walking on the surface
A green leaf of a tree on the water surface of the lakeA green leaf of a tree on the water surface of the lake
В математике: граница, отделяющая геометрическое тело от внешнего пространства. Наружная сторона чего-н..