Did the columbian exchange primarily help or hurt the world?

The Columbian Exchange affected the world by mixing things that had been only in the "Old World" with things that had been only in the "New World." For the most part, the Old World gained from this and the New World (especially its native peoples) did not. For example, the main thing that came from the Old World was disease.

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a. the astrolabe could determine the correct latitudinal location of the ship

imma have to go   the third option

sorry if i am wrong hope this

if i am right plz give me brainliest