Question

Wall decorations made from small pieces of marble set in mortar were commonly seen in Roman art. What is this type of artwork called?

Answer 1

the answer is A MOSAIC

Answer 2

This type of decoration is often called a mosaic. The definition of a mosaic is a picture or pattern produced by arranging together small colored pieces of hard material, such as stone, tile, or glass. Judging from your question, the correct answer would be A MOSAIC.