what are *4* positive and *4* negative impacts of the Columbian Exchange? also, please explain each of the impacts. *PLEASE*

Write the title date and stated purpose of the map you have chosen to describe what you learn from your careful review of the maps information. picture above

Which of the following best describes the aztecsa) skilled engineersb) peaceful farmers c) skilled writers d) mountain dwellers

15 points and brainliest if right which of the following was not a european achievement during the middle ages? gothic style architecture the canterbury tales by geoffrey chaucer troubadours grand canal