Final answer:
The physical stability of a building depends on the structural system of its architecture, such as the architectural order and the components like columns and entasis.
Step-by-step explanation:
The physical stability of a building depends on the structural system of its architecture. The architectural order, such as the Doric, Ionic, or Corinthian orders, and the structural components like columns and entasis play a crucial role in providing stability to the building. For example, the entasis, which is a slight adjustment in Greek architecture, helps to account for the perception of human vision and prevents the columns from appearing to taper in the middle.