SORU: aşağıdaki parçaya göre cevaplayınız
Which of the following could be the best title for the passage?
Under the Roman Republic, brickmaking, particularly
in the region of Rome itself, became a major industry,
and finally, under the Empire, it became a state
monopoly. Brick construction was cheaper than stone
due to the economies of scale in mass production and
the lower level of skill needed to put it in place. The
brick arch was adopted to span openings in walls.
Mortar had traditionally been composed of sand, lime,
and water, but beginning in the 2nd century BCE, a new
ingredient was introduced. The Romans called it pulvis
puteoli after the town of Puteoli (modern Pozzuoli), near
Naples, where it was first found. The material, formed in
Mount Vesuvius and mined on its slopes, is now called
pozzolana. When mixed with lime, pozzolana forms a
natural cement that is much stronger and more
weather-resistant than lime mortar alone, and that will
harden even underwater. Pozzolanic mortars were so
strong and cheap, and could be placed by labourers of
such low skill, that the Romans began to substitute them
for traditional mortars inside walls. The concrete made
from pozzolana made it possible to create curved
shapes and led to the creation of a series of remarkable
interior spaces spanned by domes and columns.