well they might of used stone and then got plaster or something and stuck the piece's to getter SOS but i don't really know
no the Romans were not the first ancient Egypt was the first to use the colums!!
Colonnades or pillars.
They copied them from the Greeks:IonicCorinthianDoric.
Yes, but because stone was inadequate, they switched to ceramic and lead pipes.
In their own homes, they would mostly use stone or wood. Marble was for the very rich only. In temples - but only important temples of major deities, built to impress - marble would be more common.
Arches!
Everything! Including columns.
They served to support the rooves of temples and other public buildings. The Egyptians had made abundant use of columns long before the Romans. The Romans adopted this architecture in the process of orientalisation - the absorption of Greek culture and art that occurred among the Etruscans the Latins and other Italic peoples in Italy. The Greeks also used column to support the rooves. Columns create a sense of grandeur.
The Romans adopted the Greek orders Styles) for making columns (Doric, Ionic and Corinthian) but also developed the composite style, which combined aspects of two reorders. They used columns for the temples and for porticoes.
columns and open spaces
Stone and turf.
do jobs in Italy