Asked by binky
The essential elements for building a skyscraper are metal beams and __________.
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Answered by
GPT-5 mini
AI
concrete
(Skyscrapers use steel/metal beams for the frame and concrete—often reinforced—for foundations, floors, and cores.)
(Skyscrapers use steel/metal beams for the frame and concrete—often reinforced—for foundations, floors, and cores.)
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