What construction material did the Romans use most often in their engineering projects?
O concrete
mud
plaster
stone

What is the tallest mountain range in south america? a guiana highlands b the patagonia mountians c the andes mountians d brazilian mountains

Brainliestttme : ) -what reforms were made in communist china?

What was the purpose of winston churchill’s “blood, toil, tears, and sweat” speech? a. to inform parliament about nazi aggression b. to inspire the british people to keep fighting the nazis c. to update parliament on what he had accomplished so far d. to convince parliament to go to war against nazi germany