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1. What did Eisenhower mean by "the free movement of persons, of trade, and of ideas"?

As a result of the columbian exchange, which crop was transferred to europe from the americas and later spread through the world? a coffee b maize (corn) c rice d olives e wheat

Which nonverbal cue most likely indicates that a person is open to a conversation? lack of eye contact crossed arms smiling mouth o monotone voice

Identify the reason each country wanted to go to war in the year before and during world war 1