Define Relief Sculpture
2. Raised Relief:

Relief is a sculptural technique where the sculpted elements remain attached to a solid background of the same material.

Explanation:

the treaty of brest-litovsk was a peace treaty signed on 3 march 1918 between the new bolshevik government of russia and the central powers (german empire, austria-hungary, bulgaria, and the ottoman empire), that ended russia's participation in world war i.