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Roman construction materials
Roman construction is famed for the use of concrete and the buildings at Portus are no exception. Roman concrete is composed of mortar and aggregate. The mortar was a mixture of lime and a volcanic sand called pozzolana.
Explanation:
The answer to the question is submarines
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Explanation:
sense of belonging automatically develops activeness in people and activeness of people ensures the enhancement in the development . ... If people have the feeling of 'me for the society' and ' the society is for me' , the sense of belonging becomes stronger .
peer review, or that's what we do.