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Concrete was an important invention and material used by the Romans. Which of the following is NOT an advantage of using concrete over stone?
a
Concrete is lighter than stone.
b
Concrete was heavier than stone.
c
Concrete was easier to work with than stone.
d
Concrete required less skill than did stone.
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Answers: 2
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Concrete was an important invention and material used by the Romans. Which of the following is NOT a...
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