"Return to normalcy" was a campaign slogan of Warren Harding for the elections of 1920, in which he promised the voters a return to the normalcy exisisting before the War. After the War America´s government supported a new way of life and optimism. War brought Women´s participating much more in all kind of businesses.
The answer is Illusion.
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The Mayan pyramids and temples were made by bricks and covered by limestone.
D. The Plateau of Tibet, it’s stands 3 miles above sea level. Surrounded by imposing mountain ranges that harbor the world’s two highest summit.