Hello how are you guys and girls speak spanish i'm new to this app

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

List three reasons why explorers began to explore new, and old areas. [[ps: doesn't explicitly say where. i think it's more in general.

A. identify the constitutional clause that is common to both mccutcheon v. federal election commission (2014) and citizens united v. federal election commission (2010). based on the constitutional clause identified in part a, explain why the facts of citizens united v. federal election commission (2010) led to a similar holding to the holding in mccutcheon v. federal election commission (2014). describe an action that members of the public who disagree with the holding in mccutcheon v. federal election commission could take to limit its impact.