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People in the Indus River valley grew all of the following except______

a. Corn
B. Cotton
C. Wheat
D. Barley

User Kiyarash
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2 Answers

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The answer to this is Barley. 
User Paul Vargas
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The correct answer should be A. Corn

It was impossible for them to grow corn since corn was first introduced to the western, and in this case the far eastern, world, when the new continents of Americas were discovered, much much later. Same would go for potatoes which weren't used in Europe before the discovery of the new world.
User Georgy Bolyuba
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