Why was disease a problem for many Native Americans, but not for Europeans in the New World?

Native Americans had never experienced smallpox before, so they had no defense against it. Europeans brought these diseases over to the New World and had already grown accustomed to them, but the Natives had not.

Explanation:

bc in america they were eating random food from trees and it hurts them

"germany's geographic location was an advantage when it was on the offensive in the war because it was situated next to an extremely wide river, the rhine, which was difficult for the allies to cross."

most people now work in jobs where they do one  kind  of work; they are carpenters, bankers, cooks, mechanics, and so forth. likewise, most  businesses produce  only certainkinds  of  goods  or  services, such as cars, tacos, or gardening  services. this feature of  production  is known as specialization.