Question

1. what modern u.s. state did he explore? the columbian exchange 31. what was the columbian exchange?

Explanation:

The Columbian Exchange refers to the widespread transfer of plants, animals, culture, human populations, technology, and ideas between the Americas and the Old World (Europe, Africa, and Asia) following Christopher Columbus's arrival in the Americas in 1492. For question 30, without information about 'he', it cannot be answered. For question 31, the above - mentioned transfer is the definition of the Columbian Exchange.

Answer:

1. Cannot be answered without more context about 'he'.
2. The widespread transfer of plants, animals, culture, human populations, technology, and ideas between the Americas and the Old World after 1492.