What finally enabled sturdy skyscrapers was sturdy steel, which is a mixture of metals and other elements, such as carbon, which is distinguished by low cost on one hand and strength and flexibility on the other.
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Answer:
Toledo
Explanation:
Toledo is the city in which the Umayyads established the School of Translation responsible for spreading translations of classical Greek literature and philosophy
irrigation- the fourth one
investor- the last one
survey- the third one
unsustainable- the second one
transcontinental- the first one
Sacrifice and hard work, passion, opportunities, motivation, discipline, open mindness, team building.