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Which of these is not a characteristic for the Roman imperial monuments built using concrete>

A) Walls are always thin membranes

B) The wall is a sculptural surface composed in layers

C) They use a lot of materials

D) They focused innovation mostly on the exteriors

1 Answer

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Final answer:

The characteristic that is not found in Roman imperial monuments built using concrete is A) Walls are always thin membranes.

Step-by-step explanation:

The characteristic that is not found in Roman imperial monuments built using concrete is A) Walls are always thin membranes. Roman buildings were built with brick-faced concrete, which allowed for spaces to be carved out of the wall's thickness. The walls were not always thin membranes. Concrete was a cheaper and lighter material than most other stones used for construction, enabling the Romans to build taller and more complicated structures.