In early christian art, mosaics were a popular art form that used small, colored pieces of glass or stone. which statement best describes most of the early christian mosaics?

Mosaics pictures stories from the bible :)

Religion changed from primitive times through the renaissance period until today such that certain church conventions and rules were set about how the holy family could be portrayed. for instance: mary must always be in a blue mantle, jesus could only be in a white robe after the resurrection, jesus could no longer be seen pointing with his walking stick when performing a miracle, and so on.hope this