What parts of Native life changed when Europeans brought pigs, cows, and horses to the New World?

Both Europeans and Native Americans were introduced to new diseases. However, the Native Americans were greatly effected because their immune systems and bodies weren't as great as the Europeans were. The Natives population decreased dramatically and they had no way of curing these harmful diseases. Many Native Americans used horses to transform their hunting and gathering into a highly mobile practice.

Explanation:

idk

explanation:

c

explanation: because you need to reduce the pollution on land,the exhaust fumes will stop,and stop it in water,the oil that is in the oceanharms the fish   sorry if you   have been waiting long