Answer:
The Columbian Exchange was a widespread exchange of animals, plants, culture, human populations, communicable disease, and ideas between the American and Afro-Eurasian hemispheres following the voyage to the Americas by Christopher Columbus in 1492. The term was coined in 1972 by Alfred W.
Explanation:
The 3rd one is the answer
Well i would assume this is a simile since the use of “as” and it’s comparing one thing to another :)