Final answer:
Early Greek vases were decorated with simple geometric lines, reflecting the Geometric Period's reliance on geometric shapes in art. This style was a hallmark of the era before the Archaic period introduced more realistic representations in pottery.
Step-by-step explanation:
Early Greek vases were decorated with simple geometric lines. The Greek Geometric Period is characterized by a reliance on geometric shapes to create human and animal figures as well as abstract décor. This style is evident in the cylindrical and flat-planed shapes found in Cycladic art and in the decorative motifs of pottery from the era, which reflect the Mediterranean influence during the times of Greek and Roman dominion. By contrast, during the Archaic Greek period, vase paintings began to evolve towards a more naturalistic approach, moving away from these geometric patterns towards more realistic scenes and figures.