The Columbian Exchange was very popular in the 15th and 16th centuries.
GOOGLE IS MY BEST FRIEND! Jk! Jk! But really, try to find the answer on your own, if you can't ask you mom or dad or guardian, if they can't help you then google. And then if google doesn't help (which I doubt will happen) then you can go to Brainly. =)
Soil is made out of sand, silt, clay, and humus.
