A large supply of cheap labor ....
It is a pilgrimage to Mecca specifically to the Kabaa, which is located in Saudi Arabia.
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Answer: it’s A. a shift in American Indian populations from east to west
Explanation:
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Thomas Edison was a Nineteenth-century inventor who is associated with Menlo Park in New Jersey
More powerful air force radar and message decoding technologies.
The Germans made efforts to bomb Royal Air Force airfields and take out Britain's radar defense system, but the outnumbered RAF fighters managed to outmaneuver their opponents, aided by radar technology.
As for message decoding technologies, the code-cracking machine developed by Alan Turing had an impact particularly on naval battles in the Atlantic between the Germans and the Allies. Once they developed the ability to decode German messages, the British had to proceed carefully and not act on every military message or the Germans would have suspected their encoded messages were being hacked.